Do you plan to raise your budget?
Raising my budget is a possibility but, with a 3-year-old and a 10-month-old in the house, I have concerns about the cost of replacement if something gets damaged (as a side note, one of the bonuses of the Martin Logan is a grill that's more difficult for a child to remove). If I were to grab the Outlaw sub I keep seeing recommended and either the Martin Logan or Definitive center channel, that would put me over $1000 before left+right or surround speakers even come into play. My understanding is it's typically ideal for your front 3 speakers to be the same brand, and those two brands would easily add another $400-$500 just on front speakers.
With your set-up restrictions, are you now thinking about towers.
It's a possibility, but the furniture in the room forces me to place the sub to the right of the TV, and I'd be limited to 24" of total width to fit both a floor speaker and a sub. My current sub is 11" wide.
Grab a pair for your fronts, you can use a phantom center until you can fit a center into your budget. That or you can put one on your gift list for B-day/christmas!
I'm a bit confused here. My impression is the center channel is more important than left/right for the purpose of TV, movies, and gaming. One of the reasons I'm considering this upgrade is I'm unhappy with dialogue coming out of my current center channel.
Based on some other threads I've looked over, here's one setup I'm considering picking up to try to keep costs down:
Center:
Infinity Primus PC351
Front:
Infinity Primus P163BK x2
Rear:
Infinity Primus P143 x2
Sub:
Outlaw LFM-1 EX
That would run me $1100 pre-tax. The Infinity speakers seem to have really positive reviews, though I haven't had a chance to listen to them yet.