I've been debating about buying some higher quality video component cables from bluejeanscables.com, but I thought I'd ask around to get people's opinions on the impact of cable quality for their DVD hookup to their HDTV. I currently have a JVC DVD player with 'budget' component cables outputting to a Samsung DLP. I recently noticed that picture quality was slightly better playing DVDs though my Xbox with the component out HDTV pack and was wondering if the slight improvement was due to the cables. Has anyone ever noticed a marked difference in picture quality with higher quality component cables?

Also, with HDTV tuners, does it make that much of a difference going DVI out versus component out?