I only have a couple days to make a decision about the front and center speakers for a HT. For the front left/right speakers I'm limited to a space about 16.5"x8" (WxH) and for the center it can be about any width but must fit in the 8" for height. I'm thinking about installing a JBL HTI55 for the center channel and JBL SP5's for the left and right. These speakers would all be built in to a custom wall unit. I'm going to have boxes built around the speakers installed in the entertainment center. Is this a good decision? What about using 3 HTI55's in the front (left/center/right)? I haven't decided on a amp yet. It needs to support 7.1 SS, only needs one zone. Any suggestions? Price needs to be on the lower end (< $500.00). The room is about 15'x13'. One side has an open stairwell going up. The room is wired for 7.1 SS. What would be a good match for the rear left/right and side left/right? I was thinking about going all JBL in-wall speakers. Maybe SP5's for the sides and SP6's for the rears. Would the SP6's in the rear over power the SP5's and HTI55 in the front/center? Would a JBL E150P be a good pick for a subwoofer? Or is Velodyne better? Thanks for any (quick) answers! david.