Hi Bullmate, welcome to the site.
I have similiar PSA starting in 2007, but mine in 2010 rose to 6.75. In prior years I took 30 days of antibiotic and PSA went down. Last year the PSA stayed the same.
I did have a 12 sample biopsy done in 2008 with no cancer detected.
This year in Jan. 2011 I had a saturation biopsy done with about 45 samples. I had one sample with a gleason of 6, so Dr and I have taken a wait and monitor attitude. I think this is the best way for me.
If you feel comfortable with your dr, I would follow his recommendations. I feel like I have a great urologist and have stuck with whatever we talk about.
Good luck to you.