The meade will work, as long as your Celestron isn't one of the EdgeHD models.
I use an OAG with my C8 and C9.25 and am very happy with it. The one hanging on the back of this filter wheel:
http://www.sxccd.com/sx-usb-filter-wheel
If you want to buy a faster/hyperstar setup, drop me a line, all my gear will be going on the chopping block shortly due to a life-change.