That is a very good price for a 75 gallon tank!
I would not start out with a small tank in SW
. There are so many things that can cause your tank to crash and crash quickly. Water volume is your friend when doing a SW
tank. The larger you can start out with the better success you will have.
Basically you are going to need:
Lights (I suggest to start out T5s with or with out MH
A decent skimmer
TEST KITS!!!!! (Ammonia, NitrAte, NitrIte, PH, eventually Calcium, MG
If you can afford it an RO
unit (look on ebay)
Pumps (if you are going to have a sump, and I highly suggest it, you will need a decent retun pump)
If you are a handy person as you say, then a lot of the things you need for your tank you can do your self. Buy a DIY/retro fit lighting kit and wire it up yourself. Build your own stand and canopy. Make your sump a 20g tank is not too expensive and much less then buying a pre-built sump!
Shop online for all your equipment except the tank. Check on craigslist for your area, people are always selling off equipment, live rock and other things you may need. I even picked up a free 55gallon tank off of craigslist.
I would not buy any equipment from the LFS
they usually have a huge mark up and you can get everything you need online at a fraction of the cost