As the others have said, it depends how much time you have to teach yourself how to do it at home (sheldonbrown, parktool etc) and if you want to aquire the necessary tools. A mixture of both is probably best, do what you can and get the shop to do the rest. It's always nice having a LBS help you out, they'll get into the project and you will learn from them.
I've converted a raleigh record sprint to SS (with track hubs) so if you have any specific questions, whisper me.
As the others have said, it depends how much time you have to teach yourself how to do it at home (sheldonbrown, parktool etc) and if you want to aquire the necessary tools. A mixture of both is probably best, do what you can and get the shop to do the rest. It's always nice having a LBS help you out, they'll get into the project and you will learn from them.
I've converted a raleigh record sprint to SS (with track hubs) so if you have any specific questions, whisper me.