Won the Amazon drawing today to be able to purchase an XBox 360 Arcade for $217. Is that a good deal? Do you really a hard drive for 360? Also noticed I can buy a 20GB HD for $89 on Amazon. Should I do the XBox Arcade and get a HD? Or are there other differences between the Arcadde and other Xbox versions? I do NOT have any HDTVs if that is a difference. Spent the last 1/2 hr looking around but can't seem to find the answers... any help is great ly apprecaited as the deal dies in a few hours... Thanks and happy T-Day.