Computer will not POST

Hi everyone! I need a little help with a computer issue. A few years ago I built my own rig and it worked like a champ...until now. I tried to turn it on a few days ago and without warning it didn't boot up. It didn't POST but it started beeping. I've been out of the "game" for a while as far as computers go but I did do research to find out what the beeps meant. I went to ASUS' website and according to it, its a video problem. I tried unplugging the memory, video card, and all the drives but it still will not POST and gives the same beeps. Its a long, short short code. The componets are Asus A8N32-SLI Deluxe motherboard, ATI Radeon 1800XT video card, and 2 GB of Cosair PC3200 memory. Correct me if I'm work but I'm assuming the rest of the components are irrelavent to the problem. Please help if you can.

Thanks for the reply ridic23. How do I go about checking the PSU?

OK, I got a psu tester and it checked good. Does that mean my videocard is bad or are there other steps I can try? Is there a way to test my videocard?

Unfortunately my mobo doesn't have on-board video. I th9nk i'll just have to suck it up and take it to a computer store. My only other choice is to buy a new video card and hope that is the problem. Either way I'll have to cough up some cash.