hey guys; i need new power supply(greater than 400W). I currently have 350W which is not that good because I can't run my cpu on full speed. Should I go for generic one, which is cheap....its only 30 bucks. What do u guys think? I also looked for "OptiMax", which is 430W and only for 30 bucks.....Is that better than generic? Should I be concerned about the volts or rails? I don't know anything about powersupplies....please help my specs: Operating System: Windows XP Professional (Sp2 installed) Case: NETLINK 18IN 350W ATX 3688 CASE /W FRONT USB PORT P4 READY Motherboard: ASUS A7V880 SOCKETA KT880 DUAL DDR AGP 5PCI SATA SOUND 1000LAN MOTHERBOARD CPU: AMD ATHLON XP 2100+ 256K 266FSB SOCKET A RETAIL BOX (running at 1800+) CPU Heatsink: VANTEC AEROFLOW SOCKETA cpu cooler TMD 5600RPM 35.5CFM Memory: 1GB PC2700 DDR333 SAMSUNG RAM Video Card: ABITR9550-128CDT RADEON 9550 128MB DDR AGP8X Hard Drives: 2 X ( WD CAVIAR 80GB INT ATA/100 HD 3.5LP 9MS 8MB 7200RPM OEM) cASE FANS = 4 FANS (2 INFLOW, 2 OUTFLOW) thanks guys.