@Htbaa
Misschien heb je hier iets aan.
Luckily Pascal de Bruijn made a very good start by meantioning a lot of tips that we 'know'. I made some additions and changes to that list and here it comes:
Common rules of thumb
* Don't buy hardware that has been on the market for less than six months. The developers need time to make drivers if the hardware is more or less largely adapted.
* Don't buy lowbudget hardware, since they usually have less (driver) support
* Don't buy anything with a SiS/ALi/ULi chip, since they are mostly not supported
* Buy A-brand hardware (or B-brand hardware if you have carefully reviewed all specifications)
* Take the latest Ubuntu LiveCD with you to the computer store and check if the CD starts/works and if the hardware is recognized (DO NOT INSTALL ANYTHING!) if you are planning on buying a laptop or pre-built computer
NIC's
* Intel has great drivers and is preferred
* Realtek also has great drivers for almost any chipset and is preferred
* Broadcom will usually work, but if possible get an Intel or Realtek
* There are WLAN cards which are supported through MadWifi (take a look at their supported cards list)
Graphics
* Nvidia has good drivers (if you want to play games, buy an Nvidia card)
* ATI has mediocre drivers
* Intel has good drivers, but I wouldn't play games on it
Printers
* Check OpenPrinting BEFORE you buy the printer!
Laptops
* I've only bought one laptop yet, and it was an Hewlett-Packard and all of the hardware works. HP is also a great brand, since it often supports Linux. I recommend it!
That's all folks!