Hello. First post on AoM for me! I am going to be getting married in August, so I started looking at tuxes for the wedding. I thought that it would be nice to buy instead of rent, so I can continue to wear it and so that I could get it tailored.

I have a lot of questions about tuxedos. I don't intend for someone to answer them all, but I hope to learn about at least some of these areas before I buy one. I've also learned a lot already from these forums, and blacktieguide.com, which I found from a thread here.

Fitting: The tuxedos that I have tried on at store nearby didn't seem to fit like I would expect. I thought a tuxedo should fit me pretty similarly to how a suit would fit. They have a pleated and non-pleated type of pant, both with a stripe down the side. I could fit probably 3-4 of my legs inside of the legs. My suits and dress pants are much more tighter fitting. My fiance and the person at the store said that tuxedos are supposed to be more baggy, but this looks really bad to me. Are they correct? I'm pretty thin (6'1", 160lbs) and generally prefer fitted clothing.

I also felt like the shoulders were too large on me. These shouldn't extend past my shoulders, right? Could this be tailored in?

Jackets: There seems to be a pretty wide variance on jackets. I liked  http://www.jimsformalwear.com/tux822.htm the most of what the store I've been to has, although it doesn't have a notch. Is this too informal without a notch?

Shirts: Pleated or not? I think I prefer non-pleated shirts, but pleated seems to be more standard. I may just like this because I'm used to it.

Ties: What kind of knot? Windsor or the double-folded knot (don't know the name; like http://www.tuxedoexpo.com/itempics/556_large.jpg). My fiance prefers the latter, and I prefer Windsor. Unfortunately the vests that match the bridesmaids dresses do not come with Windsor knots.
Pre-tied? All of the ties at the tuxedo rental place are pre-tied with a tightener. I was kind of offended by this idea, because I could tie it myself, and it seemed tacky (like a clip on tie). Is this standard or is this only for convenience for people renting?

Vests: How many buttons? I like four buttons (the vest with the jacket I liked in http://www.jimsformalwear.com/tux822.htm), but more seems more common. Are you not supposed to button the bottom button, as he did in the picture?

Thank you very much for any information. Sorry for the verboseness.