Oooo! Guitar straps are cool... but some are quite abit too wide, ain't it? =)
night86mare, do you specifically need the OpTech type of straps? As in, weight-reduction system ones? If you do, probably an option to consider would be DealExtreme. This would be the cheapest (supposed) weight-reduction type. There're cheaper ones but they're just like those included with a camera.
Have a look around the site (if you don't already know about it). Lots of things to check out. =) Prices are in USD though. Hope this helps.
Should've just gotten itsince you've made your way down to SLS. Thing about straps is, if you get 'cheap' ones, later you don't feel comfortable using it then you start complaining and wondered why you didn't get better ones so...... ya.
Anyways, I just bought two black neoprene Matin branded straps from OP last week - liking it so far, comfortable.