Check out the Doc Johnson Vacu-Lock system. The harnesses fit well and are adjustable,and there's a pretty good variety of dildo attachments for it. Typically the harness are about $30,and the dildos $20 and up,depending what you want. We bought a set with a 7" dildo to start,then picked up others afterwards. The set was about $50.

check out www.lingeriensuch.ca, You just may find something there,

While we only use it for girl-girl play ourselves, the FEELDOE is our preferred toy of this type.  It is strapless and as such needs practice to master, but hey practicing is fun. Google FEELDOE and look over the manufacturer’s official Web site. There are some forums that talk about it being used for pegging that you might want to read to help you decide if it would work for you.

i have recently seen one on a friends site that doesnt even need a harness, and you can get it with or without the anal beads on it

the link is http://www.adultgiftbasket.ca/index.php?main_page=product_info&cPath=46&products_id=2327&zenid=ebb0b3d750a4c3c8012c9b724acc6d8d

hope this helps, and happy fucking

FYI- if you are going to post a link to a site, at least please make sure it is a compatible site with more the IE as the browser

Jophnlove...saw your post and it does work with other browsers...at least for me and I am using Firefox