There are no 0402 SMDs and no huge ground planes to soak up heat etc, so none of these projects present a huge challenge if you know how to solder properly and have fairly good equipment. If you forget, practice first as already suggested.
You may like to check out this video: http://www.youtube.com/watch?v=I_NU2ruzyc4
(so far the best I've found on Youtube. You have to watch out because some of the videos there are just plain wrong!)