I got a reciever from ac4l and had no issues and would not hesitate to buy from them again. I have a speaker package coming from Ascend so have not listened to them yet so I can't comment on sound but just thought i would tell you the CBM 170's are 50 dollars off at the moment for a pair which would put them just under 300, and the HTM 200SE center is 158.
Good luck I have had a htib for about 12 years but i just decided to finally step up and get something good and i can tell you I have gone well above where i wanted to go, with speakers, subs and reciever I'm sitting at about 2300 bucks about 1000 more than I originally wanted to spend!

Hope I'm not dissapointed!