In general, spend money on good quality, high magnification eyepieces and spend a little less on the lower power ones. That's simply because quality of optics is of more importance in higher magnifications.
So you have a telescope and some eyepieces, you now need something to stand it on.
A good rule is to spend as much money as you can afford on a good solid mount. Consider that the telescope is magnifying the image often in excess of 200x but it also magnifies any wobbles in the image as a result of vibrations in the ground. I cannot overstate the importance of a good, solid mount to stand the telescope on.
There are two basic sorts of telescope mounts; the first is the most basic. It's called an alt-azimuth mount and has two axes about which the telescope can turn, up and down (allowing you to move from horizon to the point overhead) and left and right (allowing you to move around the sky).
This basic mount is fine and is very similar to the sort photographers or bird watchers use. The only negative is that it is very difficult to attach motors to track things as they move across the sky. Yes, things do move, as the Earth rotates, objects move from East to West and if you point a telescope at an object and watch you will notice it drift slowly out of view.