A question for all those 'wardrivers' out there....

Which simple (and cheaper) antenna(s) do you use to get the best signal?

I've stumbled w/ an Orinoco silver w/ no antenna and had decent results, but picked up considerably more the good ol' pringles can. I plan on trying the coffee can design next to see what kinda results I can get. Any suggestions or input?

Is it possible to use, oh, say, a radio shack standard magmount scanner antenna as an omnidirectional? It's supposed to go up to 1.3 ghz, but what kinda reception can one expect on 2.4ghz? I've found the pl259 -> N Male adapter @ radshack and was just curious. Even though the antenna is not 'tuned' for 2.4ghz. I would get the fab-corp 9" magmount, but they seem to be outta stock and for that much money for an antenna & a hobby is a bit steep although I'll prolly get one anywho.

I have notices while driving that I get significantly better results when the antenna is OUTSIDE the vehicle due to all the interfernce from within.

Anyway, any comment &/or feedback is always welcome. Happy driving