I have not used all of these apps/fixes/tweaks personally, but some of them I have used. I know some limited info about most of them, and will answer questions in here if I can, but I would encourage others to help as well.
Feel free to use these links as you see fit, be it to help yourself or somebody else. If you have a link to a thread that you think is helpful, please put it up in the thread or PM it to me, and I will likely add it to the OP.
Hero CDMA wikiwikiwiki
XDA You are a noob video
XDA New Member Guide - OP "TRusselo"
VIDEO Tutorials for Hero CDMA - OP "Asadullah"
Root the Hero CDMA (ADB method) - OP "regaw_leinad"
Root the Hero CDMA (ADB - works with mac) - OP "tehdarkknight"
Root the Hero CDMA (1-click .apk) - OP "jcase"
S-OFF/nand Unlock Hero CDMA (hboot) - OP "regaw_leinad"
S-OFF/eng-spl Hero CDMA (fastboot) - OP "darchstar"
Fix MD5 Mismatch in Nandroid Restore - OP "ihtfp69"
Revert to Stock Recovery - OP "siidheesh"
Unroot Tutorial - OP "siidheesh"
Hero CDMA RUU.exe 2.31.651.7 - OP "Whosdaman"
Hero CDMA RUU.zip (fastboot OEM) - OP "tehdarkknight"
Hero CDMA RUU.zip (S-OFF only) - OP "nfinitefx45"
ADB/Fastboot Guide (1) - OP "Captainkrtek"
ADB/Fastboot Guide (2) - OP "nephron"
ADB/Fastboot Guide (3) - OP "rulermon"
ADB/Fastboot Guide (4) - OP "nephron"
ADB/Fastboot Guide (5) - OP "laie1472"
ADB/Fastboot Guide (6) - OP "laie1472"
Terminal Commands - OP "kyouko"
Use Fastboot WITHOUT eng-spl or S-OFF - OP "jasonmaloney"
RUU Error 110 Fix - OP "dfbonney"
RUU Error 140 Fix - OP "ladios"
Flash a ROM Without an SD Card - OP "kyouko"
Strange Issues After Flashing Fix - OP "SavvyX4"
Remap Your Hard Keys (app) - OP "appleflap"
Remap Your Hard Keys (manual) - OP "Decad3nce"
Data2ext Setup Guide - OP "hockeyfamily737"
Custom App Menu from Search Key Long Press (app) - OP "appleflap"
Change Your System Font (flashable zips) - OP "fachadick"
Change Carrier Name (AOSP based ROMs) - OP "Karadorde"
Amend to Edify Scripting (1) - OP "nubecoder"
Amend to Edify Scripting (2) - OP "coolexe"
Change System Font Size (.ttf) - OP "d_1000"
Make a Splash Screen (1) - OP "tehdarkknight"
Make a Splash Screen (2) - OP "TrueBlue_Drew"
Custom MTD Partition sizes - OP "Foo_Blyat"
Sprint Radio (11/28/10) 2.42.02.10.29 - OP "theimpaler747"
Enable Qualcomm Diag Mode - OP "jjrizelcincy"
Well, that's it.
If you think this thread was a waste, blame "laie1472" lol.
Maybe I should've titled this thread "LINKS,LINKS,LINKS".
I hope this helps somebody, and the community.
EDIT: thread is sticky thanks everyone.
You have been duced!