Should I upgrade to a 7970, or wait fro Kepler, or just stick with the 580? I always feel like getting the best card out there (which is why I went for the 580), but am not sure if it's such a good idea...My card does get a bit warm when playing BF3 @ Ultra setting with FXAA mod at 1080p, it also gets pretty warm with heavily modded Skyrim at 1080p. It gets about to the 80s or mid 70s. What do you guys think I should do? Is it really worth upgrading right now?