I`d look on ebay for some fostex pm-1`s
the Tannoy speakers performed very well in recent music publications.
Also you can get Absolute 2`s on ebay occasionally for around 150.

If you are using passives I`d thoroughly recommend The Alesis RA series of amps.

The sound on these babies is simply stunning.
Better than the amps found on some active monitors in my opinion, and also very nice to look at.