Check the dimensions needed for your keyboard and mouse next to each other. Most gaming keyboards are rather large and coupled with a mouse to the left or right may not fit on the keyboard shelf. You will also want to check for dimensions for your monitor if your using a CRT (standard monitor not an LCD, or plasma) some of them are quite large especially a 22" and if you plan to use 2 monitors you will want a desk with a large desktop. I have 2 models from Officedepot 1 is the Empire
desk the other is the citadel or student corner desk. (I work for Ameriwood so I get them cheap) Neither is good for gaming, the keyboard trays are small, and if you want a large monitor you will need an LCD and 2 monitors is out of the question. They are rather handsome though. I had a model from Bush that was a corner desk without a hutch that I had 2 19" lcd's and a Logitech gaming keyboard and I had room for the mouse too. I no longer have the desk or the system but corner desks offer allot of desk area with minimal room intrusion.
Edit: As mentioned above a good quality chair is very important. Playing MMORPG games for 8+ hours a stretch makes your back sore if you have a crappy chair. Best option is a huge monitor and a recliner with a lapboard for the keyboard and mouse.
Edit: 2 Regarding the chair you will want the chair to be comfortable while being able to reach your keyboard and mouse. Some large chairs with arm rest will keep your arms and a weird angle to the keyboard when your using the arm rest. Find your desk then find a chair that will sit you comfortably in front of the keyboard. Lumbar support is nice but a pillow will do the trick too. You defiantly will want arm rests it will take the strain off your wrist and keep your arms level with the keyboard. This will prevent carple tunnel.
Edited by Sneakycyber, 23 January 2008 - 12:40 PM.