cheap mixers

TAPCO Mix.60 for all balanced IO
Alesis MultiMix 6FX for additional effects
Soundcraft Compact for additional features

MIXERS / POWERED MIXERS - UB SERIES MIXERS - EURORACK UB802 : Ultra Low-Noise Design 8-Input 2-Bus Mixer with Premium Mic Preamplifiers unbalanced outputs
UB502 mixer does not supply phantom power
UB802 and UB1002 have the same size.
UB802 $40 has 2 mono and 2 stereo channels, no lo cut filter
UB1002 $50 has 2 mono and 4 stereo channels, no stereo equalizers
UB1204-Pro and XENYX 1204 (4 mono, 4 stereo) $140 have electronically balanced outputs, mono unbalanced aux
UB1002FX $90 cheapest mixer with 100 mono-stereo effects

TAPCO mixers have z-balanced outputs (resistively)
Mix.50 $45 1 microphone, 2 stereo does not supply 48v phantom power
Mix.60 $60 2 microphones, 2 stereo, mono balanced aux

Peavey PV(R) 6 $90 4 mics, z-balanced outputs, phantom power

Soundcraft Compact 4 $100 2 mics, stereo inputs are not balanced, balanced outputs, phantom power, 3 stereo buses, insert on individual channel, hi-z guitar input

Alesis MultiMix 6FX $100 2 mics, balanced outputs, phantom power, mono aux, digital effects

USB mixer
Phonix Helix Board 12 $150 16bit 44.1k
Alesis MultiMix 8 USB 2.0 new 4 mono, with 100 effects, Cubase LE

Alesis NanoVerb $100 digital effects processor

E-MU 0404 $200 USB 2.0 24-bit 192khz, no stereo analog inputs

Digidesign Pro Tools MBOX $300 most popular computer interface