Hi, thanks for your message.
Options below:
Processor
Intel® Core™ i5-2400 Processor (3.10GHz, 6MB) [add £75.00]
Intel® Core™ i5-2500 Processor (3.30GHz, 6MB) [add £91.67]
Intel® Core™ i7-2600 Processor (3.40GHz, 8MB) [add £300.00]
Make new things possible !
Intel® Core™ i3-2120 Processor (3.30GHz, 3MB) [Included in Price]
Operating System
English Genuine Windows® 7 Home Premium (64 BIT) [Included in Price]
English Genuine Windows® 7 Ultimate (64 BIT) [add £100.00]
Dell Recommended
Memory
3072MB Dual Channel DDR3 1333MHz [3x1024] Memory [Included in Price]
4096MB Dual Channel DDR3 1333MHz [2x2048] Memory [add £33.34]
6144MB Dual Channel DDR3 1333MHz [2x2048 + 2x1024] Memory [add £83.34]
8192MB Dual Channel DDR3 1333MHz [4x2048] Memory [add £141.67]
8192MB Dual Channel DDR3 1333MHz [2x4096] Memory [add £141.67]
12288MB Dual Channel DDR3 1333MHz [2x4096 + 2x2048] Memory [add £208.34]
16384MB Dual Channel DDR3 1333MHz [4x4096] Memory [add £291.67]
Better for multitasking
Optical Drive
DVD +/- RW Drive (read/write CD & DVD) with Roxio and DVD Burn software [Included in Price]
Blu-Ray ROM combo (Blu-ray read only, DVD, CD read & write) [add £83.34]
Blu-Ray ROM combo (Blu-ray read only, DVD, CD read & write) & 16X DVD+/-RW (Win 7 Only) [add £116.67]
Dell Recommended
6x Blu-Ray Disc™ RW (BluRay/DVD/CD read & write) Drive [add £150.00]
6x Blu-Ray Disc™ RW (BluRay/DVD/CD read & write) Drive & & 16X DVD+/-RW [add £175.00]
Hard Drive
500GB (7200RPM) SATA Hard Drive [Included in Price
1TB Serial ATA (7,200 rpm) [add £50.00]
1TB Dual Hard Drive Raid 0 "Stripe" (2x500GB - 7200rpm) [add £58.34]
2TB Dual Hard Drive RAID 0 "Stripe" (2x1TB - 7,200 rpm) [add £116.67]
Graphics Card
Graphics : Integrated Intel® HD 2000 [Included in Price]
NVIDIA® GeForce G405 512MB Graphics Card [add £66.67]
NVIDIA® GeForce GTS 450 1.5GB DDR5 Graphics Card [add £191.67]
NVIDIA® GeForce GT 530 1GB DDR3 Graphics Card [add £91.67]
Dell Recommended
NVIDIA® GeForce GT 545 1GB DDR5 Graphics Card [add £150.00]
NVIDIA® GeForce GTX 560 Ti 1.25GB GDDR5 Graphics Card [add £308.33]
Graphics : 1GB AMD Radeon HD 6450 [add £50.00]
AMD Radeon™ HD 6870 1GB DDR5 Graphics Card [add £266.67]
Here's the link:
http://configure.euro.dell.com/dellstore/config.aspx?oc=d00x8301&c=uk&l=en&s=bsd&cs=ukbsdt1&model_id=xps-8300