My 5.1 setup is now complete, with the arrival of the backordered 4T's today!  I now have those babies in the front, a 5C in the middle, 5B's in the back, and a 10D to pump up the bass!  All in gloss black to give some contrast to the big cherry entertainment center.

some observations -

the 10D really can shake the house!  that aquarium scene in Nemo rattles the pictures on the wall.  I didn't realize what I was missing in my movies until I hooked this thing up.  definitely recommend this one!

5C - with the system calibrated, this center allows everything from a spoken whisper to shouted dialogue to be heard, crisp and perfect.  seems to have a fantastic range, and is a great foundation for the home theater system.

5B's - I got these speakers first to replace some back bookshelves that wouldn't work with my new receiver.  Just to compare them to my previous speakers, I hooked these up as fronts and listened to some music.  For bookshelves, these little guys sound really nice.  A little lacking in the bass, but that's what the sub is for!

4T's - Man, are these things awesome!  Even with the volume turned way down low (to avoid waking the wife) they sound so pure.  I haven't gotten a chance to turn up the volume yet (that'll be tomorrow :)  but I can't wait.  Already I know that they are going to sound fantastic.  So rich and full sounding even without cranking the volume.  I was torn between these and the 5T's, but I was trying to save a little money, especially given the great reviews the 4T's have received.  I don't regret getting these one bit!  Maybe 9 months down the road I'll upgrade, but who knows.  So far, I am very happy with these!

After the speakers have broken in for a while, I'll post with more impressions.