[tomballpkrppc]

Using HTCRIE I went from <5MB free to ~50MB free (on 3/10 ROM) with Sense 2.5 (21895) by deleting the following files. I have done this on the 3/10 and 3/19 ROM revisions without issue. I then install the deleted programs that I need onto the Internal Storage.

Load the ROM image into HTCRIE. Click the OS line to expand it. Click the IMGFS line to expand it. On the right-hand pane, you can sort by filename and filetype. Highlight files to delete and hit DEL key. When sorted by filename, you can also quickly find files by just typing the name and it will automatically jump to the right places as you type characters. SAVE when done and then flash.

For Energy.VICTOR.21895.Sense2.5_LITE_with_Cookie_Home Tab.Mar.19, I then deleted the following
mp3trimmer* (but not mp3dmod.dll)
msn*
*.widgets - weather/money
games (teeter*, solitare*, bubblebreaker*)
google maps (gmm*, googlemap*)
shakeandsave*
onenote*
swype*.*
*.tsk (keep transpsoftkeys, 2007)
files for *.tsk (classicblue*, dvf*, isaac*, rock*, ron*, vera*)
diamondtweak*
advancedconfig*
emailsetupwizard*, emsw*
java*
jbed*
wallpaper*.* (keep the ones you want)
~avatar*
*.mp3
*.wav (alarm*, alert*, bootuphtc, lowbattery, but keep the ones you want)
*.wma (alerts*, lowbatt, ring*, but keep the ones you want)
fmradio (fm*)

Carrier Provisioning (I use a Sprint cab to set mine up so I deleted these)
energy_*.cab (sprint, telus, uscell, verizon, generic)
carrierprovisioning*
carprov.exe

Enjoy!