Hi easymeat
Perhaps you could start by describing the PC you already have. The kind of things we need to know are:-
Operating System (e.g. Windows XP, ME 98)
Processor (e.g. AMD/Intel)
Processor Speed (e.g. 2.4GHz, 2400+)
Hard drive size (e.g. 40GB)
Graphics Card (e.g. Radeon 9800)
If you could also let us know what you use your PC for (e.g. 3D Games, Wordprocessing, Internet), we can let you know what we think about your current setup and the options you have for upgrading