Welcome aboard, you'll find this a great community with plenty of experience and a willingness to share.
My five cents (two cents, rounded up
) is that Tom is right. You can buy a premade table, but it'll cost you, or you can build your own.
Don't be intimidated by how fancy some people have made theirs, that all comes with experience. I'm in the process (and discussions on) of building my first table. It'll probably be very simple, but over time I can improve it and change it to suit, and that's the beauty of it.
There is an absolute wealth of ideas on the site, from a simple piece of plywood (wish we got as good plywood here in Australia) to fantastic builds with drawers and other great additions.
Take your time, plan out what you have the space for, and go for it.
It sounds like you might be best off building your own, if only for the workspace you mention you want.