Hey, I'm new to forum and to HT systems. I just order my TV(Samsung ln46a650) and I wanted to set it up to a HT system. I was looking at the HTIB but after reading what people were saying on this forum and other forums it seems like if i just build my own HT system it will be better in the long run. I was looking at getting either one of these receivers listed bottom but I have no idea on which speakers to get. I wanted to do a 5.1 setup to start and down to line do a 7.1 setup. If you guys have any other receiver or HTIB in mind besides the ones I listed which offer the same stuff please let me know. I don't mind getting good speakers for now and Ill upgrade them later when I go for 7.1 setup, doesn't have to be great. Total Budget is $700-$800(will go up to $1000 but only if its a must). Thanks ahead of time guys :-D

Inputs:
Samsung ToC 46" 1080p 120Hz LCD HDTV - LN46A650 (HDMI)
Samsung HD Cable Box - SMT-H3050 (HDMI)
Pioneer 1080p Upscaling DVD Player - DV-410V-K (HDMI)
Sony PS3 (HDMI)

Receivers In Mind:
1. Denon AVR-789/1909
2. Pioneer VSX-1018THX-K
3. Yamaha RX-V663
4. Onkyo TX-SR706

HTIB
1. Onkyo HT-S7100