I Need Some Advice On Booklets

Here are my questions which I would like advice on:
1. Glossy booklets or plain and simple printed colors?
2. What weight of paper is best for booklet covers?
3. What software is best for producing booklets?
4. If I go with more of a glossy cover, what is the best hot laminating machine for making the cover page?
5. What would be a good Inkjet printer that would do double-sided printing?