Hmm, I see what you're saying but I think for now I'm going to have to stick with what I have...after looking at the prices haha. I paid about $205usd for the 645E and being a college student without a real income, yeah. I started looking at the ProTL at the beginning but I ended up getting studio lights instead. I've already gotten a fair amount of work out of them so I think it was worth it. I'll probably have to stick with what I have now but until I have a real income I'll probably just have to stick with this.
Also, I'll search around but what does the grid screen help with? It's not just a grid is it? Is it easy to explain how some are better suited for close up? As I said (or maybe as you figured) this is basically my first medium format and before now I've just used 35mm and specifically a camera where I can't change anything else besides the normal SLR stuff.
Thanks for all your knowledge and advice!