looking for some set up stuff

[Kryptic4L]

ok going to pick up a tank for my buddy tommorow, what i'm trying to find is quality used goods as i know buying the cheap crap just cost more in the long run, but good used stuff is the only way to save some cash.
- sump for a 90 gallon, something around 40-55 gallons would be nice
- skimmer
- live rock 100 pounds roughly
- glass tops for a 90 gallon standerd size