Satellite Recommends for Monitor Fronts?

In my dedicated basement HT (smallish room...12'x20' w/7' ceilings), I have a shoestring budget setup: CS1 center, Monitor 30 L&Fs, and two PSW10s for my front soundstage in a 7.1 setup. Looking for four smallish Polk surrounds to compliment my fronts (timbre-matched, if possible), but alas, Polk never released any dedicated surrounds for their revamped Monitor series. Thought about four additional Monitor 30s for rears, but they'd be much too big for the room. Any thoughts on which of Polk's HTIB lines might work well with Monitor fronts? RM3300s? RM6750s? Not looking to break the bank here. Don't need a powered sub or additional center, and all of Polk's current lines of dedicated surrounds are newer, pricier, and higher-end than my current Monitors. Just looking for four decent and compact(ish) surrounds that I can ceiling-mount in a room that doesn't require monster speakers. Thoughts?

Comments