What are my upgrade options for my M15X?

Hello everyone. I am new to this forum and I decided to ask some of you who have experience with my question. I have an Alienware M15X that I purcahsed in mid 2009 and I would like to upgrade it as much as I can for now until I decide whether I want to purcahse a high end Alienware Aurora, Digitial Storm pc, or have my friends help me build my own. Here are the specs of my notebook: (my apologies if this makes your explorer lag)
II. Configuration


Processor(s)

• Processor 1
  • Name- Intel(R) Core(TM)2 Duo CPU T8100 @ 2.10GHz
  • Manufacturer- GenuineIntel
  • Caption- Intel64 Family 6 Model 23 Stepping 6
  • Version- Model 7, Stepping 6
  • Processor Id- BFEBFBFF00010676
  • Current Clock Speed- 2100MHz
  • Address Width- 64Bits
  • Data Width- 64Bits
  • Socket Designation- U2E1
• Verified Hardware Device against Order- CPU-2.10C2DT8100SCRD

Case Color- New
Background

System Memory

• Memory Module 1
  • Capacity- 2048MB
  • Bank Label- DIMM #1
  • Mem_Type- DDR2
  • Mem_Frequency- 664 MHz
  • Verified Hardware Device against Order- MEM-MOBLDDR22GP53ELP
• Memory Module 2
  • Capacity- 2048MB
  • Bank Label- DIMM #2
  • Mem_Type- DDR2
  • Mem_Frequency- 664 MHz
  • Verified Hardware Device against Order- MEM-MOBLDDR22GP53ELP

BIOS
Information

• Manufacturer- Quanta
• Name- PhoenixBIOS 4.0 Release 6.1
• Version- vX36 P3
• Version- ALWARE - 6040000

Motherboard
Information

• Manufacturer- Alienware
• Product- m15x
• Serial Number-
• Version- Not Applicable
• Verified Hardware Device against Order- MB-MD2WXGASILPNTR1
• Verify correct motherboard
• Power settings optimized

Video
Adapter

• Caption- ATI Mobility Radeon HD 3870
• Adapter RAM- 512MB
• DriverVersion- 7.01.01.861
• Verified Hardware Device against Order- MOBL-VMD2M88XT512MB
• Test Video Card

Hard
Drive(s)

• ST9160411ASG
  • Model- ST9160411ASG
  • Size- 160GB
  • Total Heads- 255
  • Total Cylinders- 19457
  • Total Tracks- 4961535
  • Tracks Per Cylinder- 255
  • Verified Hardware Device against Order- MOBL-HD160GB72FSEAR4

Optical Drives / Other
Storage

• Optiarc DVD RW AD-7590A ATA Device

Operating System- MS Vista
Home Premium 64

DirectX Version- 6.0

Assembler Initials- RR

Tester Initials- AI

Test Date- 08/12/2009 02-22 PM

Burn-In/Benchmarks

• 3DMark 2006
  • Customer Information-
  • 3DMark Score- 8,812.00 3DMarks
  • SM2.0 Score- 3,845.00
  • HDR/SM3.0 Score- 4,464.00
  • CPU Score- 1,896.00
  • Game Score- 0.00 Points
  • SM2.0 Graphics Tests
  • GT1 - Return To Proxycon- 30.81 FPS
  • GT2 - Firefly Forest- 33.27 FPS
  • CPU Tests
  • CPU1 - Red Valley- 0.60 FPS
  • CPU2 - Red Valley- 0.96 FPS
  • HDR/SM3.0 Graphics Tests
  • HDR1 - Canyon Flight- 42.08 FPS
  • HDR2 - Deep Freeze- 47.21 FPS
• Unreal Tournament 3 Demo
  • Customer Information-
  • Average FPS- 54.07 FPS
  • Time Spent Over 30 FPS- 98.44 percent of total benchmark time was spent
    above 30 FPS