I found some nice free stuff.
Here is a list from Qusers:
http://www.qusers.com/forum/viewtopic.php?t=1639
Automatic Keylock: Highly configurable device lock that will lock the device every time the screen shuts off (or you can set it for interval). You can even set it so that it won't engage on certain profiles or while charging. Simply brilliant.
Candelight: Toggle the screen light from full to half. Saves battery life at night.
Don't Forget: sets up reoccurring alarms for missed calls, sms, email, alarms, etc. Set the time and number of repeats as well as .wav file. Can also disable for certain profiles (e.g. Silent) and can even switch a profile for you.
SKTools Lite Keep your Q clean and problem free
Octro: Gtalk, AIM, ICQ and Google VOIP
Beersoft Battery Monitor: Haven't tried it yet but it supposedly calculates remaining battery time.