QTR-Quadtone RIP

Hello,

I've just started using MIS Associates MK carbon inks in my R1800 and 
am quite pleased. I realize however that I am going to have to 
upgrade my calibration procedure to get my targeted results. Up to 
now I've used X-Rite's EZcolor suite to calibrate my monitor and 
printer. Colorvision's Spyder products seem to be the more 
recommended. Paul Roarke recommends the PrintFixPro suite. The newer 
product is Spyder 3 Studio. Does anyone have experience with these 
and can offer a comparison. The pricing seems the same.

Best Regards,
Ola Olsson