I'm looking into some different monitors currently. I've been using wharfdales, but they are too coloured, not "reference" monitors.
The yamahas I hear good things about, but they are designed after the famous NS-10's, which from what I've read have never made great main monitors, only for checking for translation. I'm looking at Mackie, KRK, JBL...a whole bunch of different kinds.
Currently my nice pair of speakers are my JBL L112s. They arent "Reference monitors" but they are very transparent, and make a good second set for checking mixes.