ok, in which way isn't the firewire-transferred video any good? The video you get through firewire is EXACTLY the same as is on the DV tape in your camera. A new GFX card ain't gonna fix that, sadly.
Is it still blocky? Is it the interlacing artifacts? What DV codec are you using to view the files? Go get yourself the panasonic one from http://www.movie-codes.com and that should help you.
AMD Athlon 1700 (@2200mhz from 1466 sod the noise!) - 768mb pc3200 - 200GB Maxtor - Pioneer 106 - GF4 Ti4200 - twinhan/visionplus pci dvb-t - random pci analogue tv tuner - A7v600-x (to replace the a7n8x-d that died...) - random 17\" CRT
Sony STR-DE425 & Eltax c205s;
xBox w/20GB HDD- executer 2.3b;
xBox - standard;
Konica/Minolta dimage z10 w/2x512mb SD;
A silly amount of Cat-5 and usb cables