Hey Dennis,
There are many Denon models that carry THX certification also. However, I would not get all caught up in the THX thing. Manufacturers have to pay extra to have THX give them that certification. Most good receivers without THX, will give you just as good performance. I think the ones that have it may offer a few extra technical features or bells and whistles, but I would not lose any sleep over it.
Evan the ones that don't carry the badge, most likely are capable, the mfg. just wants to keep the prices down.
Also, the HDMI or Component conversion is nice if you have lots of equipment to make use of it and combine into one cable to your TV or projector. Lets say you only have a DVD player and/or sattelite, not sure it would be worth the extra cost to get this feature. If you have say 3-5 video products, then it might make sense to combine into one channel.
Hey man, we need to talk about speakers for you, not AVRs.
