Since your HELOC is over $50K CL, it's being calculated as mortgage by all three bureaus, so going over 50% is not really a scoring issue, although it might be an internal watch-point that you set for yourself.
I would kill off the balance on the 23% card with the HELOC, as long as you really, really know that you will apply the payments you've been making on the CC to the HELOC to quickly knock it back down. Alternatively, use the payments to start killing off the other cards.
Ideally, in the end, 3 cards will have $0 balances, and the other report a small balance. Use the cards all through the month as long as you can pay them off easily by statement time. I think of my cards as debit cards, which keeps me from charging things that I can't immediately pay off.
The only exceptions for me are home improvement items and my last kid's college tuition. On anything else, if I can't wipe it off within a month, I don't get it.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007