^^^Pretty sure he meant drivers... but tell use exactly what programs you use and what's in your computer... We'll be able to help you better taht way...
By the way, Vince's idea is the best, if you wanna go cheap (and if you have a webcam). If you have a camcorder, you can plug it in your sound card...
In any other case, if you wanna go cheap, the only thing you really need is a mic... so go for a cheap dynamic mic you can plug directly to your computer like at radio Shack or at any electronic store... a friend of mine even recorded with a headset
... or there is also the USB condenser mic from Samson that is under 100$ (and that you'll be able to use even if you upgrade your setup, since its an average quality mic...
http://www.musiciansbuy.com/Samson_CO1U_Microphone_C01U.html
only setback is, since it's a sensitive mic, you'll need to have a mic stand (or something to hold the mic) and a pop filter...
Then, you'll need a record booth (somewhere to record your takes)... since you dont want to pick up parasite noises (cuz the mic is sensitive)...
so bottom line, if you wanna go cheap, go cheap all the way (radio shack...), cuz when you start to buy some good equipment, prices go up real REAL quick...