Never oven your graphics card in the same oven you're eating from. You may get cancer.
If the caps blew you can replace those easily and cheaply. If the chokes/inductors shorted you can replace those but finding similarly rated replacement can be challenging. If anything else besides cooling you are limited to the oven trick. I've done the oven trick once on a 8600gts and it didn't because the vram or the gpu core was fried beyond any repair.
OK it seems like a new card is required BUT which one would be the best on a limited budget. Any advice would be good. Thanks to all Mickj
Well, limited budget may mean many things. Why don't you include numbers? .