looking for a versatile frameset $300-$600

[astrocub]

i am a roadie with no cyclocross experience, but a
growing interest in venturing onto the dirt trails. from an older
road bike of mine, i have some components (105 STI shifters,
handlebars, seatpost, drive train, saddle) that i want to use in
creating a very versatile cyclocross bike. i'm looking for a
reasonably inexpensive frame ($300 - $600) which is somewhat light
and has 130mm rear dropout spacing. in addition to some racing in the
future, i'll also use the bike as a commuter so having rack mounts
would be a nice plus.

from searching this forum, i have found some possible frames:
redline conquest
surly cross-check
k2 enemy

are there any framsets that i am missing and should be considering?

thanks,
-m

[SAB]

Can check out gunnar and soma fabrications, but these are in the 600-900 range. I just bought a new cross-check frame and it looks great! I'm going to build it up in a similar manner as you described, but first I'm sending it off to Bilenky Cycle Works in PA to have S&S Machine couplers put on it to make it into a travel bike.