Trying to upgrade cpu and power supply and to HDMI video card on Acer Veritron M275. Any thoughts?

[Mi Lo]

My son's friends gave me a PNY GEFORCE GTX 650 GRAPHIC CARD 2 GB PCI EXPRESS 3.0 VCGGTX650XPB MINI HDMI. A new Power Supply Upgrade for Acer Veriton M SERIES w/480 Watts is on its way. Bought a new 1tb hard drive for it. I am trying to get a Q9400 SLB6B- Intel Core 2 Quad 2.66 GHz 6 MB 1333 MHz LGA 775 cpu from ebay. Oh I am also going to upgrade my ram to 4gb from the current 2gb sticks there now.

My question at this time is will my mobo be able to handle these upgrades?

From http://www.manualslib.com/manual/232986/Acer-Veriton-M275.html?page=78#manual

Current mobo is
MB Kit VM275 Intel G41 ICH7 GMA X4500 Acer Logo uATX
IO shielding W/O 1394 V1.0 LF
Current cpu is - Pentium Dual Core E6600 (3.06G 2M 1066FSB) , 65W , R-0
Current ram- 2GB, DDRIII1333

 

[Mi Lo]

Wanted to update that the PSU at 480 watts is now installed and working well. Still working carefully on the rest. would like some imput!