Hi Cheri,
We redid our bathroom 3 years ago...we had a surround and went with a surround again. The only way I would agree to go with another surround was to find one that you didn't have to caulk...if you have to caulk around them you have to do this practically every year...awful! There are some cheaper surrounds at Home Depot and Menards, but I didn't like they way they looked, so we kept looking....it paid off...we found an awesome surround...it is made by a company called Swanstone. You can find them on the internet...we got ours in Cedar Rapids, Iowa. We got the tub, shower surround, and vanity top all to match...ours is a gray color, but you can get lots of different colors. Ours was attached to our wall studs and then the dry wall was put on afterwards, but you can get the surround that goes right onto the dry wall, also. We have had several compliments, and it still looks like new. Ours never has, but the instructions say that if it gets a scratch you can sand it out because the color goes clear through...pretty cool!
As for shower doors or a curtain...we have had both...I said I would never have a shower curtain because I loved my shower doors on our first surround...they opened in the middle, and were really pretty, but when we got ready to redecorate I couldn't find any shower doors that I liked that opened in the middle, so we ended up going with a shower curtain. Took me forever to find a shower curtain I liked, but after I did it was fine. Sometimes I am just too picky. My shower curtain is starting to show some wear, so I need to start looking because it will probably take me forever to find another one I like. It is fun to be able to change it, plus you don't have that track to clean.
Good luck!
C.