I just picked-up a baitcasting reel http://images.channeladvisor.com/Sell/SSProfiles/23000003/Images/5/010205991195.jpg(first one, always used spincasting). My question is...what is a good length pole to use with it (fishing off the bank)?

Anyone  :'(

I'd say 7 foot.  From the bank, you need something that will get your bait out there.  I also like a 6'6 rod too.  I think you'd be happy with a 7 footer.

Well, I currently have 3 baitcasting reels, all on rods 6'6". 1 M and 2 M/H.  The M and 1 M/H are Quantums, from WalMart. They are quite nice, I think, although far from being top of the line.  

The other is a MH from Dicks that I purchased for my son to learn bc but he hasn't got the hang of it, so I sort of use it.  I fish mostly from the bank and this length works well for me, overall, for crigs, senkos, spinners, buzzbaits, etc.  

6'6" ROD in medium or medium heavy action.

OK...thanks. I have a 6'6" medium action. I'll try that one  

The length doesn't really matter, it's just personal preference. Your rod is probably Medium Power/ Fast Action which is fine. Down the road you may want to add another rod with Moderate Action which is a little more forgiving when fishing treble hook lures.

Take a look at this thread for a more detailed discussion:

http://www.bassresource.com/bass_fishing_forums/YaBB.pl?num=1141187546