Whats the rest of your system Tom (amp, CDP, iPod via DAC etc...); also what music do you generally listen to?
It'd be handy to know as well whether youre after standmount speakers (if so have you already got speaker stands or does your budget include them) or will you look at floorstanders?
IMO for standmount speakers you'll not go far wrong with the likes of the Wharfedale 10.1's, Dali Lektor 2,s Monitor Audio BR2's or the likes of the B&W 602 S2's or S3's 2nd hand via eBay. The mentioned speakers NEED good stands to make them at their best
For floorstanders take a look at the Acoustic Energy Neo 3's (fairly unbeatable at their current price and no stands needed; more or less take up less room than a standmount speaker on a stand anyways). The Q Acoustic 2050's should also be considered as should the likes of the Monitor Audio BR5's or the Acoustic Energy AE 109's again 2nd hand via eBay