I'm going to shop around for a nice telephoto lens on ebay. I'm looking for something with 200mm or higher, any recommendations?
You will likely pay more on ebay than you would just ordering it with your employee discount at Circuit City.
One thing to remember is that with camera bodies such as the A100, Maxxum 5D & 7D, and the Pentax K100D and K10D, you don't necessarily need fast lenses unless you're an aspiring sports photographer. (in that case, you don't really need to start looking until you have at least $4k together...)
I checked out the basic 50-200 lens for my Pentax last night. Just doing the test shots, at night, I had one shot at 1/90s at f/5.6 and 200mm that came out sharp. This wouldn't have been the case without the anti shake.
So knowing that, and knowing that the reviewers rate the Minolta/Sony anti-shake as better than that of the Pentax, I would recommend the Sony kit lens. Even though it is slow, it is still sharp and will give you good shots overall thanks to the anti-shake in the Sony body.
Of course an f/2.8 would still be nicer, but then we're talking about a price range of at least $400-600, maybe more.
I believe Minolta also made a 300mm mirror lens for Maxxum at one point. I know they made a 500mm mirror lens, and Minolta's were the only ones to autofocus.
This is a good route you're taking. Covering everything except very wide angles and very long telephotos. You will know what you like to do by the time you purchase your next lens; more close-up, more telephoto, or more wide angle.