Warped chainring.

[Owlie]

I fell over the last time I took my bike out, and in getting my bike ready for a trip back home tonight, noticed the "kerchunk" noise. (Fiddling with my bike is more fun than studying for a biology final.) It appears that the big chainring is bent slightly. The teeth are all fine, and the weird bit is that it's rubbing the outside of the derailleur cage, rather than the inside, where I'd expect it to if I fell to the right (as always seems to happen). It's also much more noticeable if I turn the pedals backward, which is also slightly odd. I'm taking it to the bike shop when I get home, as it needs a tuneup anyway. I've got a few questions:
1) While I know it's theoretically fixable according to my Book of Bike Maintenance (made up title), is it actually fixable, and would it count as a "major tuneup?"
2) If it isn't fixable, how much can I expect to pay for a relatively entry-level 52-tooth chainring? Less than $100, I know, as my google-fu has only really turned up prices for Dura-Ace.
Thanks in advance!