1. No greatest hits collections
2. No compilations other than soundtrack albums
3. Multi-disc sets (double albums, but not box sets, because of greatest hits rule) count as one selection
And finally (this one should be a no-brainer):
4. Only commercially available CDs are permitted; this does not exclude indie albums, but it does not include music you made by yourself and has yet to be sold.
Other than that, anything goes. Here's my set, not in any particular order:
1. Queen- A Night at the Opera
2. The Mavericks- Trampoline
3. The Beach Boys- Pet Sounds
4. The Beatles- Rubber Soul
5. Propellerheads- Decksandrumsandrockandroll
6. Electric Light Orchestra- Time
7. Level 42- World Machine
8. Bjork- Post
9. ABC- Beauty Stab
10. Beck- Mutations
Go for it!
Princess Leia: I happen to like nice men.
Han Solo: I'm a nice man.