Thanks for the very quick response!!

I appreciate your objective viewpoint!!!! I'm just been surfing the web to get views on the subject and a lot seem to agree that PC is the way to go. I haven't used a Mac for video work so have no experience at all in that field.

In light of this I will probably stick with my original choice - PC!!
Does the following spec sound suitable:
Processor - AMD Athlon 64x2 Dual Core 3800+
Motherboard - ASUS A8N-SLI Premium or A8N-SLI Deluxe
Graphics Card - Nvidia 6600GT
Hard Drives - probably Maxtor!!

Many thanks!