Helium

Anyone heard of these guys? Any good?

I'm always happy to have another income stream, and perhaps my how-to-teach-music-privately series (which never quite off the ground) could be resurrected and put to good use there.

Thoughts? Alternate suggestions?

Office-alikes for MacOS

Looking for a free software wossname package that will do spreadsheets, read Word documents, and so on.

Yes, I could use Google documents for a lot of it, but I want to save some things locally and be able to work on them whilst on trains, and the internet isn't quite that ubiquitous just yet.

Suggestions? Warnings?