Gnomish/Goblin engineering

[Omri]

Right, so, i want to know more about the two.
Firstly - I know you can switch between them, but, what happens? do i lose my learnt items or something?

Second - I'm a rogue. Whats better for me?
Thanks for helpers :D

[Crimson]

You cant switch.. to my knowledge :S

I'm a gnomish engineer.. and a rogue. I dont actually use anything from it. I suggest going goblin - you can make some really nice things like a rocket launcher (instead of a crappy chicken thing) and a teleporter malfunction which is awsome.. you sometimes change to the other faction and if you stealth it resets the buff *cackles*

[Omri]

Alright, thanks. So, theres nothing useful in gnomish engineering for rogues? :o