Make my computer faster?

[QWERTY Warrior]

Processor: AMD Phenom II N970 / 2.2 GHz ( Quad-Core )
Memory: 4.0 GB / 8.0 GB (max)
Hard Drive: 500.0 GB - Serial ATA-300 - 5400.0 rpm
Operating System: Microsoft Windows 7 Home Premium 64-bit Edition
Display Type: 15.6 in TFT active matrix
Max Resolution: 1366 x 768 ( HD )
Graphics Processor: ATI Mobility Radeon HD 4250
Optical Drive: DVD±RW (±R DL) / DVD-RAM - Integrated

I was wondering if i could get this computer running any faster. All suggestions welcome!
Although, I would very much like it if people left 3 different answers.
1. The best performance boost.
2. Most economical
3. The cheapest
Although it is not limited to these three (You can also only have 1 or two).
I use this computer mostly for gaming (I play TF2 and Minecraft mostly). Although i can play both of these games (TF2 on low settings) I would just like to have them play better. Also i would like to be able to play more demanding games such as Left for dead 2.

Thank you!

 

[johnb35]

You are basically stuck with what you got since this is a laptop. You have integrated video.

You want to game? Build a desktop system, it will be cheaper then to buy a gaming laptop.

 

[janrob]

You could try an older operating system such as XP and a super integrated cooling system. When processors get to hot performance decrease.

 

[cwizardtx]

Processor: AMD Phenom II N970 / 2.2 GHz ( Quad-Core )
Memory: 4.0 GB / 8.0 GB (max)
Hard Drive: 500.0 GB - Serial ATA-300 - 5400.0 rpm
Operating System: Microsoft Windows 7 Home Premium 64-bit Edition
Display Type: 15.6 in TFT active matrix
Max Resolution: 1366 x 768 ( HD )
Graphics Processor: ATI Mobility Radeon HD 4250
Optical Drive: DVD±RW (±R DL) / DVD-RAM - Integrated

I was wondering if i could get this computer running any faster. All suggestions welcome!
Although, I would very much like it if people left 3 different answers.
1. The best performance boost.
2. Most economical
3. The cheapest
Although it is not limited to these three (You can also only have 1 or two).
I use this computer mostly for gaming (I play TF2 and Minecraft mostly). Although i can play both of these games (TF2 on low settings) I would just like to have them play better. Also i would like to be able to play more demanding games such as Left for dead 2.

Thank you!

1. Intel 520 Series 180 or 240 GB SSD
2&3. Intel 335 Series 240GB SSD