hey welcome to jbing, I know I had to tinker with a lot of things when I first started to get the things I wanted but here's a short list of apps I use.
Sbsettings (short cuts to things)
Lockinfo (brings up calender, events, sms, email notifications up on lock screen)
5 icon dock (name says it all)
Cydelete (to delete apps installed by cydia from the home screen and not through cydia)
lockdown pro (to password protect specific apps on my phone like sms, email, facebook, and etc. without a lockscreen password) Can also use iprotect, does the same thing.
3G unrestrictor (tricks apps into thinking the 3G connection is wifi) There is also one called My3G I believe
ifile (to gain access to directories on your phone)
safari download manager (to download files straight from safari into a directory on the phone)
I really cant think of more but those are the ones I use and find most helpful