www.tirerack.com has several. There are other places out there that have a different selection (sorry, don't got any links).

Just pay attention to the offsets and you'll be fine. Looks like the prices for certain wheels just went up though. The TRM F3's I just bought went up by $70 per wheel! (they were $379/f, $389/r)

I think the Enkei RPF1's were a decent wheel, but I stopped considering them when I saw they were a split six-spoke design. I'm picky about aesthetics.

EDIT: I think I remember the SSR Type C wheels being a good choice as well. See if you can get them for under $300 each.