About the only other thing that a "macro" (should be more "micro" actually) lens can be used for is portrait photography. I've seen a lot of photogs use their 90mm or 105mm or 150mm macro lenses for portrait work and it's pretty impressive. Aside from that, however, there isn't much else you can do, or want to do, with a macro lens.
Mrs VR recently bought the Tamron 90mm macro and really likes it. It does external focus which is something you need to keep in mind but for the price and feel it's a quality lens.
For less than $1K you can have the Tamron 90mm f/2.8 macro and Promaster 17-50mm f/2.8 and cover all those things you mentioned. (Promaster buys other people's stuff...so their 17-50 is actually the Tamron 17-50mm just with a different brand name on it.)