Dood everywire has it's slump; cat5 is perfect for home networking; it can do the speed u want; but hey; anyfaster... may optimize the connection; even if you use a 10/100 thing; or a 1000/1000000 w/e haha; it'll help it =)
Can't argue with speed

Even if it too fast haha; and as for price; I seriously doubt it'd cost SUPER much.
I don't care though; my bro works for telecommunications; I'm lucky I guess =)