Ditch the UGF. It will cause you trouble down the road. Increase the amount of LR you have. Take the media out of the canister and use it for circulation only. You want to have about 10x tank size flow in the tank. For you...a minimum of 750 gph. Read up on DSB's (deep sand beds)...you'll probably want to go with one in the new tank. It will help keep your nitrates down. The only filtration you will need is a good skimmer and your LR and LS. Even the skimmer is debatable. I use one. Most folks do. Some do not and still have successful tanks.
For lighting, it depends on how much you want to spend. Top of the line would be 2 MH fixtures and 2 48" VHO actinics. Next would probably be 4 48" VHO's with an even mix of white and actinic tubes. I like PC's very much, but on a 4 foot tank, it's just too convenient to use 4 foot VHO bulbs. 4 of them will put you right at 6 watts per gallon, and while the wpg rule is also debatable, that's plenty of light. Above all, be patient and let the new tank mature at it's own speed without the benefit of all the wonder chemicals that claim to cycle the tank overnight. If you will go to the articles link on the home page (left side), you will find some very good info in there. Don't hesitate to ask any questions you may have though.
Logan J