But would like a little bit of advice on a reasonable quality home theatre setup.
I am setting up a system that is for my parents that I will also use.
Budget is supposed to be ~$12,000, I'm having a hard time keeping it near this.

Aim is to do as much as possible with my dad to make sure he gets better components for his money, instead of paying someone else to set it all up.
Will be used for movies, watching freeview/sport, probably a bit of gaming and will be a 5.1 setup.
Don't currently have sky but may get it back again possibly for sport. I'm more into movies myself.
These are the things I am after and possible models I am looking at...
Projector - Panasonic pt-ae4000 for the aspect ratio shifting
http://www.paulmoney.co.nz/shop/television/projectors/panasonic-pt-ae4000projector
$3800
Screen - ~120" diagonally 2:35 AR
http://www.rapalloav.co.nz/product/1710/2.35-CINEMASCOPE-SCREENS/2.35-CINEMASCOPE-SCREENS/
$2200
Receiver - Yamaha rx-v1900 must do HD audios and would like a reasonable power output.
http://www.paulmoney.co.nz/shop/amplifiersreceiversprocessors/av-receivers/yamaha-rx-v1900home-theatre-re
$2100
PS3 slim - For dvd/bluray and freeview PVR
$550
PlayTV - Freeview decoder for PS3
$150
Universal fully programmable wireless remote:
Ipod touch 8gb - $300
iRule app - $70
Global cache GC-100-06 - $265
Logitech PS3 adaptor - $100
Subwoofer - cht12 Velodyne
http://www.paulmoney.co.nz/shop/subwoofers/velodyne-cht12q12subwoofer
$1800
This area is where I could do with a little help
Unsure of front speakers - Floor standing OR possibly inwall behind acoustically transparent screen (more cost for screen?)
Centre - preferably matching fronts as best possible.
Surrounds - Most likely in ceiling due to room constraints.
The room has large windows/doors surrounding the back of the seating covered with blackout curtains and another large window on the side with venetian blinds that will need to be blacked out better.
Room is 4.9m wide X 4.8m long and ceiling is 2.6m high.
Seating position is mainly 4m from wall. Projector is likely to be mounted on the ceiling and ~4.1m throw from the wall.
Probably missed some info, but let me know what you think, suggestions and best places to buy etc.
Joey.