Can I upgrade anything on my Acer Aspire #7551-3029 laptop?

I recently acquired an Acer Aspire #7551-3029 laptop. I don't know that much about laptops these days and I justed wanted to know if:

(1) is this a decent laptop or not?
(2) it is possible to upgrade anything on this laptop [besides the hard drive]?
(3) if so, what would you recommend?
(4) i am looking for a really fast system that I can use for gaming and net surfing

Here are my laptop Specifications:

  • AMD Athlon II Dual-Core Processor P340 - (1MB L2 cache, 2.20GHz)
  • Acer CineCrystal HD+ 17.3" 1600 x 900 pixel resolution
  • 4GB DDR3 SDRAM
  • 640GB 5400Rpm Hard drive
  • Iintegrated Super-Multi drive
  • 5-in-1 card reader
  • ATI Radeon HD 4250 Graphics
  • 802.11b/g/N WLAN - Gigabit LAN
  • Built In Acer Webcam
  • Windows 7 Home Premium

* I already have a 2TB external hard drive.

Any help would be greatly appreciated.

Thanks!
 
"i am looking for a really fast system that I can use for gaming and net surfing"...

Do you have $3,000 plus to spend on a laptop? I had a $3,500 Sony Vaio notebook with 8GB of system memory. It's Windows gaming experience number was 5.9

What is your Windows 7 Experience number dealing with graphics? My desktop graphics number is 6.9. That Acer might be 3 if you're lucky. Most likely its around 1.5. It is a decent laptop for anything besides gaming
 
Back