Gonna look into waid and John's books. Can you name any tpbs by them?
As I mentioned in my post, DC has been releasing trades of Waid's run. They're called "The Flash by Mark Waid". There are currently 4 volumes, with a 5th volume coming out later this year. The 5th volume marks the end of the line, but not even close to the end of Waid's run. I suspect they'll rebrand it as "The Flash by Brian Augustyn and Mark Waid" or something (and they should, because Waid & Augustyn wrote Chain Lightning and The Dark Flash Saga).
Volume 1 includes Waid's "Born to Run" arc, a Year One style story about Wally. It also includes a few one shots, annuals and specials.
Volume 2 contains the Return of Barry Allen story that I recommended.
Volume 3 contains the first appearances of Impulse, which are really fun.
Volume 4 contains Terminal Velocity, which is really freakin' good.
Volume 5 contains Dead Heat along with a few other stories.
DC also released Johns' run in a comprehensive collection series called "The Flash by Geoff Johns". It's currently on volume 4. Volume 5 comes out later this year and concludes his run of the character. But I'm not a fan of Johns at all and so haven't gotten around to reading these.
But I will also recommend checking out the Flash by Mark Millar and Grant Morrison tpb. I'm not much a fan of either writer, but this stuff is great. I especially recommend checking this out just for Flash #134, called "A Day In The Life" about Jay Garrick. It's one of my favorite Flash stories ever.