First off. There's much there that you don't need. I'll post a build I made really quick with free shipping on all items being it would be pointless and wasteful of you to pay it twice if you are sending it to your father's.
Sony Optiarc 24X DVD/CD Rewritable Drive Black SATA Model AD-7240S-0B - OEM
Item #: N82E16827118030
$21.99
Rosewill Smart One ATX Mid Tower Computer Case, Black interior, comes with three Fans-1x Front Blue LED 120mm Fan, 1x Rear ...
Item #: N82E16811147120
$49.99
Western Digital Caviar Green WD10EARS 1TB 5400 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Item #: N82E16822136490
$79.99
Acer X193WCb Black 19" 5ms Widescreen LCD Monitor
Item #: N82E16824009210
$109.99
Rosewill Green Series RG530-S12 530W Continuous @40°C, 80 PLUS Certified, Single 12V Rail, Active PFC "Compatible with Core ...
Item #: N82E16817182199
$49.99
Logitech Black USB Wireless Desktop MK300 Keyboard and Mouse
Item #: N82E16823126069
$33.99
CORSAIR XMS2 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X4096-6400C5
Item #: N82E16820145184
$99.99
Microsoft Windows 7 Home Premium 64-bit 1-Pack for System Builders - OEM
Item #: N82E16832116754
$99.99
Bundle
Combo: 382154
GIGABYTE GA-MA785GM-US2H AM3/AM2+/AM2 AMD 785G HDMI Micro ATX AMD Motherboard
Item #: N82E16813128394
AMD Athlon II X2 245 Regor 2.9GHz Socket AM3 65W Dual-Core Processor Model ADX245OCGQBOX
Item #: N82E16819103687
$110.98
Subtotal: $656.90
Shipping: $0.00
You don't need ddr3, well, she doesn't for what she's using it for. The western digital drive is better and more power efficient that the samsung. I have that motherboard, and paid almost the same you would for the bundle of that and the cpu together. It's a nice board, allows am3 cpus but only supports ddr2 up to 1200. It has a 4200 ati onboard chip which I've seen my wife play the sims 3 on, backing the forth coming point that you don't really need a graphics card. You could buy one, but I doubt the computer will barely even utilize it. A 4850 would be too much for what she needs, and a 4350/4650 isn't much higher than what's already in it, aside from it being dedicated. That dvd drive seems ok and supports DL which is always a plus being backing up takes less disks if thats the route you choose to take. The ram listed is quality, and 4gb of 800 speed will be sufficient for her use.
The psu is good, and is also energy friendly. She really doesn't need even a 530w but it'll be less work on the supply therefore lengthening it's life, also leaving the option to install a graphics card at a later time without needing to upgrade the power supply. The cpu is good, only difference between those and a phenom II X2 is the lack of L3 cache, which would mainly assist in heavy applications and games, therefore once again, not needed. The rosewill case looks awesome for the price, and has plenty of ventilation which every pc loves. The price also includes that logitech keyboard and mouse, both wireless. Also included is a 19'' monitor and windows 7. You could get a bigger lcd but I wouldn't go much higher than 20'' with onboard graphics. All this for a little less than what you were gonna spend. Shit you could even spend the 50 some dollars on the 9400gt if you wanted, that power supply is more than capable of handling it. I will point out one thing, ddr3 isn't much more than ddr2, so if you could swap out the motherboard for a similar priced one and get ddr3 for damn near the exact same price it would only be in your favor (or hers), better performance.
I don't know why people say it's so easy to build a pc, it isn't when it's your first time(ignorance is for humor of the intelligent). There is a lot of shit you can fuck up very easily. It's important to always stay grounded, which many neglect, because ESD can and will damage components. There are bracelets you can get to prevent this so make sure you either pick one up from newegg, although they are cheaper on ebay. Make sure you do research, the internet is your friend. You don't have to go buy books as they get easily outdated and the internet is constantly updated. I wish you luck though man, if you need any advice feel free to pm me, my ears are as open as paris hiltons vagina...j/k..lol..i'm out.
edit: You definitely don't need a ssd. You could also swap stuff listed with less expensive things, such as the case you picked, etc. I believe I could make something a little more wallet friendly, but I need a cigarette and it's late as shit. If I run across a nice online guide I'll be sure to send a link to ya.