http://hackaday.com/
Just do some of those projects.
Or buy some kits from Seeed Studio. A lot of their kits are more embedded software oriented but there are some really good kits to learn hardware skills on.
http://www.seeedstud...ster-p-630.html
I got the Flash Destroyer but it's more intermediate instead of basic because it has some small parts. You just have to move up from simple stuff like a (non-conductive/'plain perforated board') breadboarded transistor radio to larger printed circuit boards with smaller components. Then you can learn surface mount techniques from Youtube - a hint is that using a soldering iron for SMD's is
doing it wrong! Sane people use stencils or such.
Try finding something broke and desolder the parts, then REPLACE them to get it working. That is fun and a bonus is it might even start working again!
Either way, get to the point where a Ohm meter shows no open or shorted solder joints to the pins pretty consistently. Now, the Xbox is a totally different beast than soldering some kit. The kit is practically throw away compared to your precious toy's expensive motherboard which means you really only get one chance so don't do it if you don't feel confident or don't mind buying another board. Your main enemies are overheating traces (yes, components but the traces are the real pain), not noticing solder gaps/bridges, a soldering iron tip that doesn't want to work in tight spaces, and underheated solder that refuses to melt. Oh, and mixing solder types+not cleaning the board of flux.
Non-conductive breadboard:
https://www.radiosha...oductId=2103804
Note the lack of metal. I have those for some projects where the conductors would just get in the way. Picture is just an example since many companies sell this. The conductive boards are handy when you're doing digital stuff, though. They have great ground planes and convenient spots to mount capacitors near your chips. Not so good for RF, heh.
Edit:
Oh haha, read the section on breadboards here: http://www.geofex.com/article_folders/protostyles/proto_styles.htm