For a little more than the price of the 90mm Mak, you could get a 6" (150mm) Advanced GoTo Celestron from the same place. Which would be a much larger scope, on an equatorial mount, however only a CG5 which is similar to an EQ5. Not perfect for astrophotography, but a much better starting point than the 90mm Mak. The CG5 will handle the 6" with ease as it can easily handle an 8". Some on the forum I believe use a CG5 for photography and have a guide scope and more on the mount.
But as others have already said, to get serious about photography you need something like an EQ6, but this could be pushing your budget.
If it was me, I would stay away from the scope, even a Meade ETX-125 is very similar price but a lot larger....fork mount though too
