So here are a couple of utilities I have found that may help out some of you guys.
SC2Gears
Website: (REMOVE THE PARENTHESES)sites.google.(com)/site/sc2gears/
(wont let me post links cuz this forum is gay, so fix up the link and copy paste)
This tool helps save, store and analyze replays extremely well. If your into analyzing your replays (Which you should be) this will be great for you. It runs in the background of your game and save replays. You can have them saved to certain folders and have them named however you want to help with organization!
Build Order Calculators:
These are fun to play around with but really won't help any of us.
Zerg:
Protoss:
Terran: Terrans suck so they dont need one.
(I'll add the links later, but I cant seem to find them. Hopefully these get updated with 1.4, but even then let me now if your interested cuz I'm lazy so I might not post the links.)