First off, I shoot with a 40D and my heaviest lens is the 70-200 f4L. I have come to the conclusion that I like the Manfrotto 055XPROB. BUT, I am so confused on choosing a head. I plan to do some landscape photography at different angles so a ballhead seems like a good choice. But I also plan on doing some real estate type photography where I will be shoot at 10mm and need to be level and a ballhead complicates this right? I know I can get a hotshoe level but I'll be using a flash(unless the head plate has a level built in). Also, with pano's, I'd like the option to pan (which requires a level shot). I'm guessing quick-release is a good option too?
I'm on a tight-budget right now and really don't need anything fancy. Any suggestions?

