The Mix WIZ is a nice little starter console. It has the features you need, 4 band EQ instead of the common three band in many affordable mixers, direct outs, high pass, etc...
Somehting else you may want to look for.... older Soundcraft stuff, (seriess 600, 400 etc...), Allen Heath GS series, Soundcraft Ghost, Soundtracs Topaz etc....
Those are all decent well built little desks, some of which actually offer studio features. With the Ghost and GS consoles, you will probably have to find a 16 channel version in order to stay within your budget. What you will get though, is a console designed for studio use so it would have 8 busses, as well as some sort of tape return (inline channel) arrangement. This is really handy for studio applications, but not absolutely necessary.