Unfortunately, not all of us are well off and can afford buying a new and modern computer.

There are a lot of people who don't need their present computers any more and sell them at lower prices. In many cases used computers are a good way to get started without spending a lot of money.

Many computer users upgrade their systems every couple of years. And just like a used car, if the system has been used properly, you can still get a lot of use out of it.

One of the first things you should do before buying a computer is to test the drive. Here are tips from experts...

-- If you find something wrong with your computer ask if the problem can be fixed or you will have to look for another machine.

-- Find out who to call if you have a question. When is help available? Also keep in mind that if something does go wrong with your computer you will have to pay the whole amount of money needed to fix it. Check whether there is a warranty and how long it is in effect.

-- Ask what your warranty covers. This way you can be sure that you will buy a really reliable computer. Don't forget to ask about the manufacturer. A computer made by a well-known manufacturer might be easier to have repaired than a generic clone.

-- Make sure you know whether the installed software comes with licenses and other documentation, or not. If it doesn't, it is not good. It may turn out that the computer is not legal.

There are many sites that have a good supply of used-computers and refurbished computers. But here's the best place to view a wide selection of used computers and used computer parts. You are protected by the buying and selling agreement (which sellers agree to prior to selling their used computers and computer parts). Plus, you can view a sellers feedback to see if they are legitimate.

Here's a tip: Be sure the seller is not selling for the first time. Take a look at the items they have sold already and make sure they have positive feedback on these items. The more feedback they have on sold items (especially for computers) the better.

There are some con artists will buy several super cheap items to get a positive feedback rating. After they accomplish this, they will list an expensive item for sale and rip you off once you pay for the item.

Since they have positive feedback they must be legitimate, right? No. Like I said, if they don't have any positive feedback on several items they already sold you run the risk of being ripped off. Otherwise it's pretty safe for buying computers.

Just use common sense and follow the tips above. Search for cheap computers now.