I have Mirage OM10s for mains and an OMC3 center channel. I've had them for 3 1/2 years and really enjoy them. I think Mirage makes very good quality speakers and the price is very reasonable for what you get.
I have the FRx-7's and I love them. Try to take them home and audition them for awhile. You will never know what they sound like until you place them in your setting with your equipment and CALIBRATE! Most Mirage dealers will let you audition them. Good luck!
the omni 60s are great, the only draw back to the sound is the precise imaging(i think thats what its called?), rather then "i hear a saxaphone on the upper right portion of the sound stage" its "i hear a saxaphone somewhere in the general direction right of me, but its sound envelops me."
they sound very open, its easy to forget that speakers are there, just dont use the omni 50's as fronts, id recommend the 60's or the 260's, imo, the 60's with a competant sub, sound better then the floorstanding 250's.