I'm thinking of picking up an UPS for my new system (A64 3000+, Asus K8N-E Deluxe, Mushkin 222 Special, BFG 6800GT, Dell 2001FP, PCP&C Turbo Cool 510 Deluxe) but APC has so many offerings that I don't know what to choose! I was browsing their website and saw the Back-UPS LS and the Back-UPS Pro series. Both are within my budget (~$150) and I'm guessing the Pro line is better but the LS is black which matches all the electronics in my room Help me choose as I have no idea what all the ratings and specs mean Also, is there a cheaper place to buy APC UPS' from? Thanks!