Agree with all the above comments I would also add. Buy a controller and think about how your going to do water changes.
I'm glad I followed other people advice and didn't cheap out and skip the controller. The controller gives me piece of mind being at work and traveling since I can check on the tank from the inter-tubes, it also allows me to automate top off's, finer controler of my temperature, control my lighting and not have to deal with timers etc. I wouldn't say the controller is don't build a tank w/o it but its one of those things once you have it you'll never want to be w/o it. I would compare it to a GPS. Yeah a GPS would be nice but I've used mapquest and thats been fine... until you have one and then your using your GPS to tell your wife I'm on my way home and its telling me I'll be there in 10 minutes... or maybe thats just the tech geek in me.
The waterchanges because this is a key aspect of a healthy tank and if its too hard to do you won't do it. For me water change steps are :
1) Push a button on my phone to turn the pumps off (yeah controller)
2) Hook up a hose and run it to the street
3) Turn two valves to redirect main pump from the DT to the hose
4) Push a button on my phone (yeah controller)
5) Wait 5 minutes. Push a button
6) Unhook the hose and hook another hose to my mixing pump in my Brute and run it to the sump
7) Plug in the hose (yes my mixing station is not hooked up to my controller.. hmm maybe I should fix that)
8) Wait 5 minutes.
9) Unhook the hose and redirect main pump back to the DT.
10) Turn on my RO/DI and add the salt to my mixing. (Using a bulk reef supply ATO float valve to auto shut off for me)
11) repeat next week.