About the HACC uniforms, as far as I know, they're going to be white tops, maroon bottoms. I'm in the PN class right now and they had us vote (same with the RN class) about changing the bottoms from white to maroon. We all voted to change the colors, but unfortunately the uniforms won't change until next year.
As far as how many to buy, from my own personal experience, start out with one or two. I'm entering my third semester and I still only have one uniform
set. The material is thick and uncomfortable as hell, but it's extremely durable. I was afraid to buy more than one set at the beginning just because I was afraid of wasting the money if I didn't make it in the program. Now that I'm starting the 3rd semester I'm going to buy another top, because despite all the bleach I've used it's started to look a little gray. But that's just me. Other students in my class have three or four sets of uniforms...and then again, others have only one that are left over from when they attempted the program a few years ago.