Thanks alot Georg for the input!
I've been spending this whole day reading the Cosina 55 thread
*pfeew*
I was worried at first that the Revuenon would be different from the Cosina but now it seems clear to me! I seems like a very good and sharp lens. Im not so much into bokeh....yet, but i hope this lens will give me some inspiration to that. And also, after i got the FA 100 macro i feel that i learn alot more about taking pictures than with th kit/zoom lenses. Havent used my AF zooms at all lately....
Anyways.....hoping to get the Revuenon and that it is in good shape. The pentax lens has gone to another buyer today so its not an hard choice now