Root Questions About Rush: Boot logo + general complains

[Extrinsic]

Okay, this is my first post but i've been a member for a little while. I bricked my first droid (LG VS-780 Ally[?]) and broke my second phone (LG VS-660 Vortex) in frustration when I threw it against th wall. I had a lot of success with the Vortex...not so much with the Ally obviously. I was wondering if anyone knows how to change the boot animation..Im rooted but the app I generally use (JRummy ROM Toolbox) failed to have any effect. Im not a fan of the compat. issues with ICSor the memory issues of the Rush. Oh well...

 

[Extrinsic]

*UPDATE*
Well the boot logo isn't at the top of my priority list but for those that are interested I solved the "out of space" issue, at least in the short term, by clearing, cache, dalvik, data, and performing a factory reset so the apps that were previously blowing me crap are currently installed.....
Ive looked around....is their a list of sysapps that i can safely remove from. The Rush? A link would be appreciated. Thanx.