I don't think you can go wrong with the KWA KP45 (USP), only $155 from TheWarStore.
This KP45 Tactical has a threaded barrel as well so you can rock the suppressor right out of the box: http://www.thewarstore.org/airsoft/p...as-system.html
Note that KWA uses the exact same system/parts as KSC. There are legally two separate entities now though. (Sys7 = NS2 = KSC Glock GBB design/internals).
PS: I hope you're not going through airsoft depot (AKA ripoff depot).
PPS: Also, I usually default to The War Store for people on the east coast. Supposedly they're pretty reputable and an overall awesome store.