Ok, here goes, and this is just my opinion.
First of all, I do not believe that glucophage (aka metformin) is only for woman that are ttc. Takeing metformin has been the best thing I have ever done for my PCOS. I am not IR and it has helped me so much. My acne has gone away, except for the few I get with AF. AF is now regular, my cycle was 29 days give or take a day but never more then 30 days(after 14 months on metformin and avandia I am now expecting). My mood swings have leveled out. The hair in places its not supose to be as slowed down, doesn't grow so fast and is actually thining out. I have stopped gaining weight and have actually started loosing.
I am a huge believer in the benifits of metformin in the treatment of PCOS. (please keep in mind that each woman has diffrent results with metformin)
I personally do not believe that BCP's are the answer, I feel that they only deal with one symptom. That they don't treat it, just mask the problem. BCP's suspend "O" which for most woman with PCOS we dont "O" anyway. The only benifit I see from BCP's is that it makes AF come. (In the first few years I took many different kinds of BCP's and had nothing but problems)
If I were you, I would talk to my Dr. explain your feelings about the BCP and that you want to treat PCOS as a whole not just one of the symptoms. If you Dr won't listen, find one that will.
When I was DX'ed at 17 in 1990 the only symptom I had was no AF, an u/s was done and I had the typical string of pearls. I was given BCP and sent on my way(not much if anything was know about PCOS then). Since that time, the symptoms of PCOS have only gotten worse, it seems the older I get the more symptoms I get and the worse they get.
There is still so much that isn't known about PCOS and having a Dr. that will listen to you and research with you is very important. I have a lot of friends that were told for years that their labs were "normal" to find out they had PCOS the whole time.
Now, I do want to address the AF you had that lasted for 8 weeks. In the many years I have been dealing with PCOS I have only had one that lasted that long, it was acompanied by sever cramps, now I don't want to scare you but I feel that you might want to get this checked out. For me, mine was from polyps caused by fetility medications, but I know many woman with PCOS that have had polyps that weren't on fetility meds.
Like I said, there is so much that isn't know about PCOS and I feel it is very important to have a Dr. that will listen to you and explore the many diffrent options there are to treat this. In my expierience for a long time BCP's were the only way to treat PCOS, and a lot of Dr.'s that don't know any better still use that aproach.
I am really sorry, Dr.'s that wont listen and think they know all there is to know just drive me crazy, but I will shut up now. Just please, research and find out what course of treatment you feel will be best for you and stick to your guns, find a Dr. that will listen to your feelings. There I am done. Sorry for the long post but I tried to keep it short, if I was to say everything I want to say, it would be atleast 3 times longer

But I do wish you the best in your search for the right treatment for you.