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Hi Trido,
Eyepieces are just the same. Depending on what you want to do, different eyepieces are suitable.
Wide field, long focal length eyepieces are prefered by many deep space observers whereas planetary observers want much shorter focal lengths (for more magnification) and field of view is not as important as on-axis performance.
Many may disagree, but if you're really not sure what is going to interest you and you are looking for something that isn't a toy, I'd suggest an 8" Schmidt Cassegrain (SCT). The Celestron ones are lighter than the Meades.
The SCT is a great all-round scope that is excellent for planetary work. SCTs also don't require the same high-end eyepieces to provide a nice view.
If deep space interests you more than planets then a 8" to 12" dob could be the go. These are vastly cheaper and the Dobsanian mounting is very rigid. They don't track though. This makes them far less comfortable for planetary work than an equatorially mounted SCT.
Please let us know what your expectations are so you can get some reasonable advice!
Hope this helps.
Have fun,
Doug
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