Try the Behringer DSP110 Shark (Sharc) !
It is small, inexpensive and has in it :
Compressor/limiter
Noise gate,
Equalizer
Feedback-eliminator(automatic !)
Delay-line (max of 2000ms)
Phantom power
Mic preamp
XLR in/out
6.3mm in/out

Have a look at http://www.behringer.com/DSP110/index.cfm?lang=ENG

Roel