Help, new to digital imaging and I need some advice. I have a Sharp Viewcam VL-Z8 and would like to know how to get by video onto my PC and then convert to DVD?

My PC has a 120gb HD (approx 80% free), an Athlon XP 2600+ processor, 1gb memory and a Geforce FX5900 graphics card. My PC has a Firewire Port (IEEE 1394), a Liteon LDW851S DVD writer and USB ports. What is the best thing a could buy? (I guess it would some sort of external converter??)

I have a Dazzle DVC 80 (USB link) which I have had very limited sucess transfering video from my old analogue camera.

All advice greatly appreciated!