I have a Toshiba C655-S5113. I purchased TS3 a week ago and was able to play it for one day. Then when I finally had time to play it again my computer kept on flashing a black screen when I was in the game. I tried restarting the computer, and nothing seemed to work. I talked to several people and they said its probably the graphics card. My laptop apparently isn't up-to-date with the requirements. I understand the requirements for a desktop/laptop are high and am willing to purchase a desktop computer. Though I am not for sure where I need to purchase a good prebuilt computer for a low price. If anyone can help me that would be great :D

Read and study the stickies, SysReq, archived threads, System Review sites over morning coffee or when you take a break. Purchasing a system takes a lot of research if you don't want to get burnt with "buyer's remorse". I realize the models and component list in the stickies are very outdated, but you can search hierarchy charts/benchmarks and apply that old model placements for their newer "cousins".
In particular, these 2 threads have lots of tips:

• Computer Upgrade
• Seeking guidance on specific video cards for Sims 3 and my computer specs

When you have decided on a budget and the capabilities that you want, post back with that budget, the links to some systems you've shortlisted, or the components you've chosen and someone will be by to comment on their suitability. And answer any other questions you have, of course.

Oh, we also need to know country of purchase if we're to give some suggestions (once we know budget, of course). And if this is a Desktop to be purchased/build from scratch - ie no monitor, Operating System, keyboard, mouse or other components you're gonna reuse from older (or a friend's/relative's 2nd hand) machines? Also, when do you project your next upgrade/PC purchase to be further down the road?

Another thing to note is budget has to match expectations, I mean a US$450 machine cannot be expected to play Sims 3 as well as on a US$1500 machine. At current retail prices, a realistic middle-of-road US$800-1000 can most likely last you 2 years. If you plan to upgrade earlier than within 2 years, we can probably save money now for better components later (with the caveat that you cannot play the game as well right now while you opt for lower-calibre components). If you plan to upgrade/purchase in 4 years, then it is best to get the best your money can buy right now so it has a better chance to last longer and for the long haul.

If Sims 3 is the only game you play, spending an exorbitant amount for a high-end machine is also a waste of money (as the issues happen with them the same, they don't seem to be exempted from Sims 3 issues or able to counteract the issues any better), unless of course money is no object.