Some good advice there from bacon - I'd concur with all of that.
I've been in the position of hiring photographers for everything from editorial fashion shoots to advertising / catalogues and pr material. I've now been a photographer myself for some years and it's a constantly changing arena. I started with film and now, along with the digital age, comes much more competition and so many more options to be swayed by!
What kind of photography are you planning on doing? Just that it will effect the answers to your questions.
Copyright? Well, that's up to you! I have a contract for weddings which states that while I own the copyright - I am happy for them to use the images for personal use but absolutely not for any other purpose. I ensure I can use them for my website should I want to and for marketing material. If you were shooting commercial (as bacon describes) or for a magazine then it's likely that they would want the copyright.
If you are doing family / children sessions then most people want discs and prints too. Top notch family portrait photographers tend to offer packages (a bit like Venture) so you you'd need to research suppliers. Frames are popular and so are canvases. You'd be wise to get a few professional photography mags as they're a good place for finding prof labs etc as they tend to advertise there. Some people like to go to a studio or venue others prefer you to take all your gear to their home.
Artwork - well, that depends on what the job is. The only 'artwork' I get involved in is laying out an album. That's my limit!!
I think so many people look for different things. For some jobs I do require a full frame camera, others want speed, while others want reliability. I'm not cheap
but I'm not a rip off! I don't have a studio - don't want one but I know people with them and it's perfect for them. I know some photographers who just shoot b&w while others literally drag kits all round the uk shooting for newspapers or mags.
I've spent the last year really trying to simplify my post production workflow after getting so bogged down in it all! Hope some of that helps and makes sense!