Torque wrench: If you plan on wrenching on the car in the future, just plunk down the money for one now. I've gone through a number of the Sears one's and think they are absolute shit. Lowe's Kobalt line is holding up well but by far my favorite is my Snap-on one. You'll actually need to get two, one for high torque apps, another for low, but the low isn't really needed until you get into the engine.

Spring compressor: You can pick one up FOR FREE at Discount or Advance auto-parts. Just put down a deposit, use it, bring it back, pick up your deposit. Simple.

Jack Stands: Again, if you plan on wrenching, just pick up a set. They're cheap as hell and once you have 'em, you'll use 'em more than you would've thought. Just make sure that your floor jack has the lift to get the car up high enough.