I'm new to the PC upgrading stuff,but I've found out enough about my pc to know which area to tune up. First of all, I plan on buying a 450-watt PSU because the one i have now is 250w and its loud as hell... Next is the hard part. I have looked up dozens of sites on video cards and I think the best one for my pc is an ATi Radeon x1650 256mb agp. I know i should be getting a PCI-E, but I'm not too confident in replacing my motherboard. All in all, this is going to need around $2-300 cdn. It's going to be a loooong summer:|

P.S: You think these upgrades will be enough to run Starcraft 2 smoothly?