Help installing SIMS 3 +REP

[MeRkAgE]

I am trying to install Sims 3 but it says there are a few problems with my computer :

Minimum: (XP) 2.0 GHz P4 processor or equivalent; (Vista) 2.4 GHz P4 processor or equivalent [If built-in graphics chipsets then 2.6 GHz Pentium D CPU, or 1.8 GHz Core 2 Duo, or equivalent]. You Have: Intel(R) Pentium(R) 4 CPU 2.80GHz - How can i improve it?

System RAM Minimum: (XP) 1 GB RAM; (Vista) 1.5 GB RAM [If built-in graphics then add 0.5 GB additional RAM] You Have: 510 MB - Any way i can get the memory required?



Video RAM required - 128MB, you have 96MB
Pixel shader version required 2.0, you have 0.0

THOSE ARE THE PROBLEMS I HAVE, PLEASE CAN YOU HELP?

[Flamedragon3]

I share one of the problems you have, and that is that I need a 128MB Video Card. I'm afraid the only way to get this, is by buying one from an electrical store such as PC World or Amazon. If you have a laptop I'm afraid that you can't buy one for it, where as you can buy one for your computer.

I guess I'm just going to have to see what the cost will be and whether it is worth it, as it is about £20-£30 on amazon, but I don't know what the installation may cost if I need someone to install it for me...

EDIT - I've also heard that apparently it may be best to get a video card with more than 128MB, as if its this short, the graphics may be quite bad to the standard that they could be.