HT seating dilemma

Thanks guys. Just tryin' to take in all of what Flrnlamb said! Wow. I never knew there was this much to think about. I have no ht gear yet. I will be using a seperate tube 2 channel setup that is not connected to the ht side. I have all this gear already. I am planning to get B&w inwalls, already have a velo dd15 sup and a b&k 5ch amp. Will look at a processor with eq capabilities. Cabling will be kimber kwik. Room treatments by realtraps.
Flrnlamb, the room is dedicated and enclosed. Entry is from the rear. I want a 110" screen or so. Will have my 2 ch speakers out into the room a few feet. i basically want something like this...
http://forum.audiogon.com/cgi-bin/fr.pl?vdone&1174144434&read&3&4&
Looks like i will bring in a chair to put in front of ht seating for 2 ch listening.

This will be a 1080p projector. Is it worth it to get a "anamorphic" screen/ lens like the link above? It looks cool but is it worth the cost?

Ok,
I went to my local hifi buys and they had a setup very similar to my room. They had a riser with 3 chairs on the second row and 2 up front. Looked pretty good to me. That will put the front row at 14 feet, the second row at 17-18 feet. What do you guys think?

my room dimensions are nearly identical to yours. I haven't had the need to seat more than 2 except on rare occasion - but will be interested in what you come up with. Mine was really set up for myself and my wife (but mostly just me).

I would recommend you take Flrnlamb's advice on AC. I'm using semi-cool running gear and it will warm up easily. The projector alone kicks out a lot of heat. I used an already existing room so I didn't have an oppty to add extra ventilation. One of these days I plan to do so.

screen size will be 106"