For those of you who are interested, I've put most of the running gear I recently purchased through their paces (ha! pun actually not intended) and here's what I've discovered:

Proper running gear is da bomb. Full Stop.

None of this was inexpensive, and I hesitated at first, but it was SO worth it. Here's what I picked up.

From Lucy
Long run shorts. I sized up and bought a medium and I should have gone with the small instead, but even a bit loose these still stayed put. These ticked all my boxes: comfortable, with a wide waist band that doesn't squeeze my tummy (which is hard for me to find) and a zippered pocket in the back waistband big enough to hold my phone which tracks my run (time, distance, pace, etc.) and also plays music.
http://www.lucy.com/Endurance-.....RW_Bottoms

Pack and dash tank. Today was my first run this year in 85 degree weather and this tank was amazing at keeping me relatively cool. I sized up so it wouldn't cling around my tummy. There are few pockets in the back that could probably be used for something light like running gels.
http://www.lucy.com/Pack-and-D.....SEA%20GLAS

Short sleeve top. Again, it's amazing what the proper material can do for regulating temperature. Has a shirred bottom, so it's relatively flattering for those of us who don't have a flat tummy. http://www.lucy.com/Get-Fit-Sh.....361_color=

From Lululemon:

Groovy Run Short: these shorts rock. Again, ticked all my boxes: wide waistband, zippered pocket, they stay put and don't ride up. The link takes you to the bright green - I was boring and bought black, though will have more fun with my next pair! http://shop.lululemon.com/prod.....038;skuId=

Hope this helps for anyone who might be considering new gear! I'll budget for proper gear in the future and never go back to ill-fitting, inexpensive, non-technical gear again. Everything I hated to put on no longer deserves a place in my workout capsule and has been purged. Yay!