Newegg.com - BIOSTAR GEFORCE 6100-M9 Socket 939 NVIDIA GeForce 6100 Micro ATX AMD Motherboard - Retail

This is a motherboard I'm going to buy. Fucking gateway I bought sometime last year fried, literally days after its warranty was up. (Was why I own this laptop now, but I still want a gaming machine I can periodically upgrade easier). This is a fairly cheap motherboard replacement, it has 4 slots to take my 2gigs of ram, is the proper 939 pin interface for the processor that had been in it, and has a PCI-Express slot for the 512meg ATI Radeon I bought for the thing when I was hoping that just the onboard video on the thing had fried instead of the entire motherboard.

My problem is this; the folks at Gateway are devious little money-grubbing bastards that try to make it as difficult as they possible can to upgrade your machine through any means other than through them. So I can't recycle my case. As far as your peripherals are concerned a typical motherboard will have on the backside your card slots to the left, and any onboard peripherals like usb ports, keyboard/mouse plugs, onboard sound or video plugs, etc on the right side. Gateway swapped these things so that theirs are on the opposite sides of things, meaning if I tried to re-use their case then the fittings for all this crap to poke through won't even be on the proper places in the back. And the same is true of their power supplies, it's housed in this special fittings on the top of the case that seem unique to that case's design because god forbid I'd ever want to yank the fucker out and put it in something else when the piece of shit computer finally blows up! I have an even older computer that had fried before that gateway, and I'm rather hoping its case will work. But either way, its power source is definitely too weak to handle the stuff I'll be putting in it now. So either way I'm looking at ordering a new power source too.

My question is this; do any of you know enough about building computers to be able to recommend exactly the minimum amount of watts for a power supply I should get? Going for the biggest one is an obvious answer but since I'm such a cheap bastard I don't want to pay for once that's too big. I just want something that'll be good enough to handle what I want to put in it.

lol, arent u using a computer right now? lol