Spend a day in London going round a few shops.

Walrus - for the unusual side of the market

KJ West One - for a large selection

Oranges and Lemons - for your boggo stuff

I'd reccomend booking appts with all 3 shops, give them your budget and ask them to give their best 2 alternatives..

oh..

and that shop tenson reccomended in nth london would be a good place to visit too, not many shops do studio monitors full stop.

**finally**

don't forget to ask them to include as much 'ex demo' kit as possible, it will give you much better sound for your money.. and you'll still get a full warranty.