What would you recommend for a 1st Snowmobile? I'm 100 lb 20 yr old female.?

[Stewie]

I probably wouldn't use the machine too overly much (just as a weekend outing) I don't want the new machines that require $1000 service every year before you take them out!
Something a little older, that's DURABLE. Doesn't need to be really big or fast. I've heard that the Indy's are pretty low maintenance...and they are nice and light. What would you recommend?