I recently bought a cheap Shimano wheelset - rear one for turbo use, and front one to replace a knackered wheel. They were Shimano R501, cost £72 from Ribble (RRP £129). Seem fine so far.
Cassette I got was a 10 speed Tiagra, again from Ribble, for under £20.
Stuck an old worn out tyre on rather than buying a turbo tyre.
You could upgrade your wheels but it'll cost you a lot more than £92 
Now - what does fat buddha think...? 
Edited: 11/10/2012 at 22:02