I know what you mean about trying different scopes.
But I don't think an 8" SCT after an 8" Newt is very exciting.
How about a nice refractor like the Meade ED 127mm from Bintel. Or I've heard very good things about the new Skywatcher 180mm Maks if you're into mid-high power viewing. MyAstroshop has them for <$2k.