
Here are some bullet points to enable you to compare the models
Asus P5Q

* 8-phase power
* Express Gate
* 4x DDR2(Dual Channel) 1200/1066/800/667
* 1 x PCIe2.0 x 16
* Gigabit LAN
* EPU-Six Engine, Drive Xpert, 3rd Generation 8-phase Power Design, Precision Tweaker 2, Heat Pipe module, 100% all Japan-made Conductive Polymer Capacitors, AI Direct Link, AI Nap, Q-shield, Q-connector, EZ-flash 2, DieHard BIOS, Fan Xpert, O.C. Profile, Express Gate
£89.99 +VAT
Asus P5Q Pro

* 8-phase power
* Express Gate
* 4x DDR2(Dual Channel) 1200/1066/800/667
* 2 x PCIe2.0 x 16
* Gigabit LAN
* EPU-Six Engine, 8-phase power design, Express Gate, Drive Xpert, Fan Xpert, ASUS fanless design-heatpipe solution, AI Nap, Q-shield, Q-connector, ASUS O.C. profile, CrashFree BIOS3, ASUS EZ Flash2, Precision Tweaker 2, ASUS C.P.R.
£94.99 +VAT
Asus P5Q-E

* 8-phase power
* Express Gate
* 4x DDR2(Dual Channel) 1200/1066/800/667
* 3 x PCIe2.0 x 16
* Dual Gigabit LAN
* EPU-Six Engine, Drive Xpert, The 3rd Generation 8-phase Power Design, Precision Tweaker 2, Heat Pipe module, 100% all Japan-made Conductive Polymer Capacitors, AI Direct Link, AI Nap, Q-shield, Q-connector, EZ-flash 2, DieHard BIOS, Fan Xpert, O.C. Profile, Express Gate
£107.99 +VAT
Asus P5Q Deluxe

* 16-phase power
* Express Gate
* 4x DDR2(Dual Channel) 1200/1066/800/667
* 3 x PCIe2.0 x 16
* Dual Gigabit LAN
* EPU-6 Engine, , Express Gate SSD, Drive Xpert, 16-phase Power Design, Precision Tweaker 2, Copper Heat Pipe module, 100% all Japan-made Conductive Polymer Capacitors, AI Direct Link, AI Nap, Q-shield, Q-connector, EZ-flash 2, DieHard BIOS, Fan Xpert, O.C. Profile
£119.99 +VAT
Asus P5Q3 Deluxe Wifi

* 16-phase power
* Express Gate
* 4x DDR3 1600/1333/1066
* 3 x PCIe2.0 x 16
* Dual Gigabit LAN
* Wireless-N
* EPU-Six Engine, 16-phase power design, Express Gate SSD, Drive Xpert, Fan Xpert, 100% Japan-made Cap, Q-shield, Q-connector, DieHard BIOS, ASUS EZ Flash 2, Precision Tweaker 2, ASUS C.P.R.
£134.99 +VAT