I've mainly been working on Cody and Sagat as my main characters to play but would really like to add a charge character to my rotation of characters.  With that said, is there a good introductory charge character that I could work with or does it not really matter?  I'm leaning slightly towards Balrog and Vega intrigues me with his Ultra 2.

I would NOT recommend Vega, i've been playing since forever and I still can't figure out how that slimey bastard works. 
 
Guile some people might have issues with, i'd say Balrog or Honda, depending on how much you like throws. Maybe some Blanka. Anyone basicly but Vega.

Deejay ?

I tried playing as DeeJay for a bit (I never use charge characters, either).  He has some solid moves.  The sliding roundhouse is a lifesaver if you don't really know what you're doing.

Balrog or Deejay

Balrog, Guile andI suppose Deejay.

Balrog is by far the easiest

" Balrog or Deejay "

Balrog or Guile.

DeeJay is a good place to start.

I'd say Guile. Once you get into charge characters you can easily switch to someone else.

Bison's not a bad choice either. You learn about frame traps and good use of normals if you play as Bison. I learnt the importance of using all normals of a character to deal with different situations by playing a bit of Bison. I guess the same could be said for Guile, too.

from what i gather from this thread; anyone except honda and vega.

Guile. Only 2 special moves, so not too much to work on, and his fireball is very forgiving.

Honda was the first charge character that I actually understood.

Blanka. Since a lot of people online don't know what to do against him so you can do anything and win basically.

i started with vega and it improved my play with all charge characters 

Bison has good charge abilities that are easy to grasp.

I say Balrog. I found him pretty easy to pick up.

Being a Vega player, I'd say don't lean towards him if you're just starting out.  He can take quite a while to get a handle of. 
Instead, go with DeeJay or Balrog.  DeeJay has a very good all around game with some simple combos and easy to use moves, and Balrog is one of the most inherently strong characters in the game.

Guile dude. 2 specials, how easy is that

Balrog is probably the way to go, though I personally like Bison the best. Great normals, easy to combo into scissors, the SSF4 version psycho crusher is actually useful now, headstomps/dev rev/empty dev into throw for shenanigans, EX scissors and ultra 2 to keep fireball spammers at bay...pretty damn good, if ya ask me.

I've similarly never really been able to wrap my head around charge characters, but Deejay is pretty painless with a lot of options out of any crouch and Blanka is an asshole.

" Blanka. Since a lot of people online don't know what to do against him so you can do anything and win basically. "

use chun-li with a kikosho ultra. she has a lot of effective normal moves and her charge attacks more of support her normal moves rather than be main attacks to damage the opponent. and her kikosho ultra is easy to perform. :)

I played alot of Balrog this weekend with friends and found him to be pretty enjoyable.  I'm also finding it fun to play as Bison too.  Thanks for all the suggestions people.

DAT HONDA.

Blanka was the character I used when I was learning how to play charge characters. He is really solid and fairly easy to play relative to other charge characters.