I want to get a new GPU to use on my old system and/or HTPC. I'll mainly have it in my secondary computer, it's a bit old but it's still alive. Sony Vaio [insert model no. here] P4 "Northwood" 3.2GHz 2GB DDR 553 (1x 1gb, 2x 512mb) 250GB Maxtor HDD Asus [insert model no. here] motherboard DVD burner and 2nd DVD reader ATI Radeon X300 128mb (PCIe) 364W PSU The HTPC has better specs so if it works on this it'll work on that. Limitations: Can't exceed 8" in length Can't need more than like 350W Don't want to pay more than $100 I was looking at the Sapphire 4850 that's only $100, but it wants a 450W PSU. So can anyone think of a card that fits the requirements that has the most power for the price? Maybe a 4770 or something else, it doesn't have to be ATI.