Customizing Themes Questions

[Mr Rock]

Hi guys

I can't find the answers anywhere for this.

I want to buy a theme and customize it using a freelance graphic designer.

My questions are:

1. Am I always under a non-exclusive license unless I 'Buy Out' the theme?

2. Will the creator of the theme add his/her logo on my site, unless I buy out the theme?

3. I guess all I'm asking is, what are the advantages of 'Buy Out'?

4. And what should I expect a designer to charge me for skinning or customizing the template?

5. If you're a designer, how much would you charge?