Can someone please tell me where is the best place to buy a sump and fuse for my 75g overflow. Also what kind of skimmer should I buy....................Thanks for all feedback..........

http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=AQUAC-REMORA&Category_Code=AquaC

For that size tank I would suggest the Remora hang-on-the-back of your tank skimmer. Easy to adjust and convenient to empty the waste. We do have www.MyReef.com here in town for larger, more expensive setups.