Thank you for your time and consideration. The level of knowledge and patience is a great help, and I feel like I can come back here when I need help.
I just put in my first darkroom chemical order through http://www.adorama.com. I went with all Ilford stuff because it's the only name that I know of (besides Kodak of course) The reason I went with an online vendor is because the closest camera shop is nearly a 3 hour drive from where I live.
I did get the powder solutions mainly because they are the cheapest, and I don't think I'll have any trouble mixing them as I'll be majoring in a Chemistry field, so I have a lot of experience with mixing chemicals that are a tad more dangerous than metol and the other darkroom chemicals.
And as for a stop bath, taking into your thoughts, vinegar shouold be fine since this will be my second development, but I will keep your considerations in mind as I progress to more advanced techniques.
Again, thank you for your huge help