I get all of my workout clothing from Athleta. I teach, and they offer a 30% discount to all instructors. Their return policy can't be beat and the clothing transitions well if you wear it all day like I do. Their casual line is my absolute favorite for traveling or hiking, too.
I don't pay for sports bras there- I've been getting them all at a local Nike outlet store and I love their form and function- previously I was buying them all at target, they have held up well but Nike has more variety.
I agree that purchasing even a few pairs of good quality clothing helps you both look and feel better about yourself- you're working hard and deserve it!
Good luck
