Build your own skimmer............. might be ugly but it will work, and save you tons.
Build your own stand.............pain in the tail but if you are handy go for it.
Grab a buddy's used tank on the cheap..........a scratch or two will be overlooked.
Seed your live rock......Be patient and it will save a ton.
OK BUY GOOD LIGHTING!!!! Onlything worse than dealing with the financial punch in the face of having to buy lighting is when you have to buy them more than once. Cheap lights just plain suck. No way around it. They might function and get you by for the time being, but you will indeed regret cheap lights if you are planning on going with anything reef related. Cheapo bulbs, crumby reflectors, inferior ballasts ect ect ect.
Lighting is a system. It provides a very valuable and demanding purpose for our tanks health. When shopping for lighting with products side by side, the little differences that you might overlook if you are thinking to just grab something to get you by will surley bite you in the backside down the road.
Maybe in powerbills being higher than needed.
Maybe noisy or annoyingly loud cooling fans.
Maybe in bulblife being prematurely shortened by inferior electronics internally
Maybe the reflectors look to your eye as bright but the "usable light" is half what you would have gotten with another so your photo dependant inhabitants will starve.
A good lighting system is worth its weight in gold for this hobby. Not just bigger and better, but more importantly being of good quality, safe, and reliable with consitant quiet operation for the long term.
Sorry for the rant, but just all too often folks try to "make due" and it becomes an expensive headache that is so easily preventable. Just do some research. Get lots of oppinions, and then go from there for what you are planning long term for your tank and its inhabitants.
-RFB