Heading a 'small bit' south to the Bantry area I'd suggest:

Mill Little, for its variety and wonderful boulder burials.
East to Kealkil and Breeny More, but you may have seen these before.
South to Dunbeacon, for a panoramic view and a genuinely ancient atmospere.
Northeast to Cullomane, for an imposing five stone circle, quartz boulder burial, standing stones and well.

These sites can be found on FourWind's website:

http://www.megalithomania.com/show/county/Cork

I've been meaning to put some pictures of Cullomane on here for quite a while but the ones I have are poor enough and I haven't got around to taking more. Excuses, excuses.