The Celestron 127EQ Powerseeker at Play.com requires a separate motor for tracking the sky, so is not ready for your camera. See the reviews at:
http://www.amazon.com/Celestron-21049-127EQ-PowerSeeker-Telescope/dp/B0007UQNKY for the telescope, and at:
Amazon.com: Celestron Motor Drive for AstroMaster/PowerSeeker EQ Telescopes: Camera & Photo for the tracking motor.
Doesn't seem like the best use of your money.
The Sky-Watcher Heritage-114P Virtuoso Computerised Reflector Telescope at Wexphotographic.com is a better deal, with the clever camera pointing features. It is better explained at:
Orion StarBlast 114mm AutoTracker Reflector Telescope | Orion Telescopes and Binoculars
It seems to be rather new, as I haven't seen any reviews for it.
Some problems: it is a table-top telescope, meaning it has no tripod. Unless you want to kneel on the ground to use it, you need a method of raising it up (eg, use boxes or a camera tripod that is sturdy enough). Orion has such a tripod (needs a 3/8" mounting screw to fit), extra cost of course.
The big problem for astrophotography of any serious nature is that the mount is an alt-az, meaning that it does not derotate the Earth's spin. It only points the telescope at the same point in the sky, and tracks that point, but does not rotate the whole telescope so that the field that the camera sees doesn't rotate. Imagine pointing this scope at the pole star. The mount will happily keep the telescope pointed there all night, but while the pole star will only make a tiny little arc on your image, stars at the edges of your camera field will be making great arcs across the camera field. That's "field rotation". Only an equatorial mount will not have this problem. A common type of equatorial mount is the funny-looking mount of the Celestron 127EQ Powerseeker, for example. The problem will become more noticeable for longer camera lens focal lengths. Note that it is NO problem for visual observing, but will limit the length of exposures you can make, getting worse the longer the lens. Elongated stars in an image really suck.
Do you have an astronomy group of some kind near you? They will be able to give you information much faster than I can. Or try cloudynights.com, where there is a great deal of information already available. It's really hard trying to answer questions about this or that telescope one by one. I still recommend that you read more and learn more before jumping in. If you want to jump in anyway right, the Skywatcher will be fun for visual, and you can add a goto controller to it later, doubling its cost. It does lack in photography capability, however, because of the field rotation, but should give you some interesting wider-angle star shots, even allowing panoramas by stitching together shots.
Jumping in now will likely result in replacing your telescope rather than upgrading it. That may not be a problem for you, and if so, go for it. You will learn a lot if you get something that does not totally frustrate you right off the bat, and that knowledge will get you to a new telescope system that is tuned to what will really work for you.