While the others would be good to know in terms of flavoring (especially 3), it's not necessary.

Hmmm. I might try and find at least number 3 then.

You probably should try out New Vegas, too. 3 has the better story line but New Vegas has better companions and add-ons. I have a feeling you'd love Old World Blues.

Mad science! Floating brains in jars! Roboscorpions! Genocidal toasters! All in one place!

Ohhh things I definitely need in my life. Thanks for your help!

3 and Vegas were great, and if funds are a issue there used to be some pretty comprehensive playthroughs on YouTube with no commentary so you can just absorb the story