What monitor speakers mate well w/ Cambridge Audio

My Cambridge Audio A640 V2 amp (75wpc) is quite good, and I'm looking for a set of nice budget monitor speaker to set on my Target Audio speaker stands. The room is large and lively sounding, so full bodied sounding speakers w/ good bass is what I'm considering.

I'm using JBL 610's but know I can do better. B&W, Quad, Kef, Spendor, Monitor Audio, etc come to mind. I haven't determined a price but on the low side of good monitors is what I'm thinking about.