Need some install help!

[zachd73]

I have someone who is going to help install my new projector and screen.

However, I am going to go buy the cables needed where possible.

It is a mits hc3000 projector
Dalite manual pull down screen 106"
Samsung Blu-Ray Projector (HDMI)
Marantz AV (NO HDMI, 7.1 analog inputs in use)

Room is 16.5 by 10 by 8 high.

I am going to get a 35 foot HDMI cable (1.3 compliant) - (RIGHT?)

I am not sure if I really need to run component cables. But I suspect it would not hurt. I do have a ps2 which I don't play often but maybe I will want to and it uses component.

Power cable - is there a special cable for long install runs or is a heavy duty extension cord basically what is often used?

I have a panamax surge protector/regulator so it seems I would want to run out to that (and not tie directly in to house power - do people do this sometimes?)

Is there any other cable I should consider running? I have also read maybe an IR trigger for things in the future like an automatic screen that can be controlled with one remote? That is a possibility, but I do not think I will run this cable at this time though.

I have no idea what all these wires will look like coming out of the wall near my A/V equipment?? I know that running them down the wall will not be that difficult, I recently ran a network cable and there was an old vent in the wall so it was simple... however that installer used an unused electrical box and put a network jack on the wall.

Do most people get different wall jacks for all these different cables or do they just come out of the wall together through a big hole??! I have not seen an HDMI wall jack, a component cable wall jack, etc. and have no idea how the power is going to come out to plug in to the surge protector.

I'm also curious about the basics of hanging the screen -

Is a ceiling mount the most logical versus a wall mount? The screen has holes for hooks at either end. I don't see how these would line up with studs in the wall but they would easily line up with studs in the ceiling since they run cross ways appropriately... however I had not really anticipated the screen hanging out from the wall much at all or any. If it does hang from ceiling it will be out from the wall however far the stud is located right?
Do you need anything more than the studs in the ceiling such as reinforcement?

Projector - I have an omni mount. The projector has no lens shift. I have to line it up exactly with the screen right? Also same thing with studs in ceiling - will the stud location dictate the distance from the back wall that I can place it?

Thanks for any help. If there is an install guide or document out there I can read up on, please send a link!

Thanks again, this is a great forum, I've gotten some great help so far.
I'm crossing my fingers this installer is good and I definately want to know what he should be doing before he does it!