I like the Oktava MK-319, modded in some way (Marik or Oktavamod do a great job - I've had luck with lesser mods I did myself), and they're at the bottom of your range - the mod cost would push them to the middle (unless you do minimal stuff yourself and like it)
AT-4040 is nice (and I hear the 4050 is nicer) - middle of the range
My favorite is a Group Buy ACM-6802T extensively modded by Marik (Peluso capsule and TAB-Funkenwerk transformer) - top of the range after the mods (bottom before the mods, and it was OK then, too)
There are many other good options, I'm sure