By maxing our your budget I have come up with the following specification. It's well balanced and a gamers dream:
Chassis & Display
Vortex II: 15.6" Glossy Full HD LED Widescreen (1920x1080) Processor (CPU)
Intel® Core™i7 Quad Core Mobile Processor i7-2760QM (2.40GHz) 6MB Memory (RAM)
8GB SAMSUNG 1333MHz SODIMM DDR3 MEMORY (2 x 4GB) Graphics Card
2GB AMD® Radeon® HD 6990M - DirectX® 11 (15.6" Vortex II) Memory - Hard Disk
500GB WD SCORPIO BLACK WD5000BPKT, SATA 3 Gb/s, 16MB CACHE (7200 rpm) DVD/BLU-RAY Drive
8x SATA DVD±R/RW/Dual Layer (+ 24x CD-RW) Memory Card Reader
Internal 9 in 1 Card Reader (MMC/RSMMC/SD: Mini, XC & HC/MS: Pro & Duo) Thermal Paste
STANDARD THERMAL PASTE FOR SUFFICIENT COOLING Sound Card
Intel 2 Channel High Definition Audio + MIC/Headphone Jack Bluetooth & Wireless
GIGABIT LAN & WIRELESS 802.11N CARD INC. BLUETOOTH 3.0 USB Options
2 x USB 3.0 PORTS + 2 x USB 2.0 PORTS AS STANDARD Battery
Vortex Series 8 Cell Lithium Ion Battery (5,200 mAh/76.96WH) Power Lead & Adaptor
1 x UK Power Lead & 180W AC Adaptor Operating System
Genuine Windows 7 Home Premium 64 Bit - inc DVD & Licence (£79) Office Software
FREE Microsoft® Office Starter 2010 (Limited functionality Word & Excel) Anti-Virus
BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL Notebook Mouse
INTEGRATED 2 BUTTON TOUCHPAD MOUSE Webcam
INTEGRATED 2.0 MEGAPIXEL WEBCAM Warranty
3 Year Standard Warranty (1 Month Collect & Return, 1 Year Parts, 3 Year Labour) Insurance
1 Month Free Laptop Insurance inc. Accidental Damage & Theft Delivery
STANDARD INSURED DELIVERY TO UK MAINLAND (MON-FRI) Build Time
Standard Build - Approximately 5 to 7 working days Quantity
1
If you wanted to trim the price a little without having too much impact on performance, consider this:
Chassis & Display
Vortex II: 15.6" Glossy Full HD LED Widescreen (1920x1080) Processor (CPU)
Intel® Core™i7 Quad Core Mobile Processor i7-2670QM (2.20GHz) 6MB Memory (RAM)
8GB SAMSUNG 1333MHz SODIMM DDR3 MEMORY (2 x 4GB) Graphics Card
2GB AMD® Radeon® HD 6990M - DirectX® 11 (15.6" Vortex II) Memory - Hard Disk
500GB SERIAL ATA II 2.5" HARD DRIVE WITH 8MB CACHE (5,400rpm) DVD/BLU-RAY Drive
8x SATA DVD±R/RW/Dual Layer (+ 24x CD-RW) Memory Card Reader
Internal 9 in 1 Card Reader (MMC/RSMMC/SD: Mini, XC & HC/MS: Pro & Duo) Thermal Paste
STANDARD THERMAL PASTE FOR SUFFICIENT COOLING Sound Card
Intel 2 Channel High Definition Audio + MIC/Headphone Jack Bluetooth & Wireless
GIGABIT LAN & WIRELESS 802.11N CARD INC. BLUETOOTH 3.0 USB Options
2 x USB 3.0 PORTS + 2 x USB 2.0 PORTS AS STANDARD Battery
Vortex Series 8 Cell Lithium Ion Battery (5,200 mAh/76.96WH) Power Lead & Adaptor
1 x UK Power Lead & 180W AC Adaptor Operating System
Genuine Windows 7 Home Premium 64 Bit - inc DVD & Licence (£79) Office Software
FREE Microsoft® Office Starter 2010 (Limited functionality Word & Excel) Anti-Virus
BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL Notebook Mouse
INTEGRATED 2 BUTTON TOUCHPAD MOUSE Webcam
INTEGRATED 2.0 MEGAPIXEL WEBCAM Warranty
3 Year Standard Warranty (1 Month Collect & Return, 1 Year Parts, 3 Year Labour) Insurance
1 Month Free Laptop Insurance inc. Accidental Damage & Theft Delivery
STANDARD INSURED DELIVERY TO UK MAINLAND (MON-FRI) Build Time
Standard Build - Approximately 5 to 7 working days Quantity
1
Personally I would go with the first spec but just drop the CPU down to the i7 2670 if you want to save a bit, apart from that both specs look great for a gamer and the 6990 will be maxing out games for a good awhile, really wish I could afford one xD.