What kind of quality can be expected in a Bobact BW89 SP pistol? I have heard both good and bad thing about them.

Also what kind of retail price can I expect for a PTR-91, Sarco seems to have the best price on them ($695.00) but it does not look like their website has been updated in a few monthes. Is this price is still valid?

I have never shot a Bobcat Weapon, but many here have posted positive reveiws.

On your question of where to get a PTR...

I would try Atlantic Firearms.  They have both the PTR and Bobcat line.  I have never purchased anything from them, but their customer service reviews are good.  They have quoted out on this board as well saying that if you have a problem with someones product.  They want to know about it so they can assist you in getting satisfaction from the vendor.  I would rate that as great customer service, since they are still willing to help after they have your money.