hey wise, welcome to the forums
that's a pretty decent speed...
that translates to about 60KB a sec.
it's really hard to say if cable would be better or not. each website you download from can give you different results.
my cable connection, i can often times transfer around 360KB a second. but most all the sites i download from limit me to much, much lower. some sites i still get 5KB/sec transfers, while others are up around 50KB.
on the really fast sites (the ones i get 300KB/sec or more), it will also sometimes vary depending on what time of day it is (cause more people on cable=less bandwidth per person). so sometimes i can go to those fast sites and only get 200KB.
there are several things that factor into transfer rates.
1) your isp will limit you to a certain KB upload and download (actually they usually tell you in Kb, which is 1/8 of a KB).
2) with cable, you are subject to how many users are sharing your connection with you at the same time. (oftentimes relates to what time of day/night you use it, cause most people aren't up all night like some of us)
3) sometimes the cable company (and i assume dsl company, also) will experience technical problems and you will get lower than normal speeds, even at 3am.
4) the connection speed of the site you are downloading from.
that having been said:
most of the people's speeds i have seen, tend to lead me toward cable IN GENERAL having better transfer rates. that's not always the case, but it seems to be most of the time.