It's sad but true: a great looking game needs serious cpu and graphics card resources. Some of the newest titles only work fine when they are run on systems with 2 top video cards. On the other hand, you can design a good looking game using GameStudio and make it run ok on a regular computer - just take a look at what the users at this forum are doing.

As a conclusion, try to use a PC with a dedicated 3D video card; it will make your life much easier. If the PC has a weak 3D card, you will have similar problems with a $500,000 engine as well.