180 gallon tank advice

[atlfishes]

I'm looking at upgrading to a 180 starfire tank. I was originally thinking about a center overflow since the water could flow directly down/up from the basement with less bends in the plumbing. It would be harder to access the overflow. Any other things I should consider when deciding?

What size bulkheads are standard? 1.5in?

Any tank manufactures that people like, local guys are selling all-glass and marineland.

Thanks

 

[CookieJar]

I have a 180 that's against a wall and it's got corner overflows, which I like. if they were in the center it'd be very difficult to do anything in there. Imagine a fish jumps in there, how would you get it out?