This place has some of the most versitile and ingeneous telescope adapters for astrophotography on the internet. The one I like best is the T-ring for 1.25" eyepieces. Allows you to adapt most 1.25" eyepieces to a standard male T-thread to attach T-Rings etc...very simple non-bulky item. Better than using bulky Camera projection tubes/adapters in most cases. Also has webcam adapters etc...International Shipping is also very cost-effective. If I remember right flat rate $7 international and USA shipping.
www.telescopeadapters.com