suggestions please

Hi- I want to upgrade my speakers. I'm currently using a pair of Allison 7s. I'm running computer (JRiver) through a Peachtree Nova (80watts/channel I think). The room is large, about 20*25 with 12' ceilings (vaulted). I have about $1500 to spend. I've listened to Paradigm Monitor7s and liked them but I'd appreciate any other suggestions.