I don't know what the prices are on Radio Shack gold stuff, but it's high quality. So if the price is right, go for it. Right now Parts Express has a clearance on 2m Acoustic Research component video cables. The link is
here. Also, if you need a longer cable, Knu Konceptz has a
4m component video cable for $18 plus shipping (should be $5 shipping). For a DVI cable, the best price I've seen recently is Blue Jeans ($50 for the size you need). Impact Acoustics sells a 3m cable for $99, but that will be around $80 with the 20% Audioholics discount.