Agree with My December. I am a photoshop-idiot but LR is easy to pick up. Not too ex too. IIRC $159 for LR2 student (Academic Version). U can try it out first before buying. With a clock of mouse, is abit impossible if you think about it. Technically, software also wont know how you want to enhance or what sort of feelings you want the photo to give too right?
there's a reason why DI people are paid to do the job they do... they don't just operate a program, they provide creative input... but to get back to point, I would suggest looking at DxO Pro... it does have quite a wide variety of auto functions correcting not just the colour and brightness but also lens distortion... as well, they are camera and lens specific, which they claim would mean that their solution is tailored to each camera and lens combination (provided the lens you use had been tested by them)