My wallet is still recovering from my n800 purchase, but wants it settles down I'm gonna get a bluetooth GPS. Been doing some research here and elsewhere trying to find the best one for me, but I'm hoping you guys can help me narrow it down.

I have a case logic HDD case for my n800 and iGo keyboard. It really has no more room in it for a GPS and I don't wanna have to carry a gps around and easy forget it. Then I saw some that have a keychain attachment. That is requirement #1. Otherwise I'd forget to bring it, or forget to bring it home and lose it

I don't need to use GPS to land an airplane, but I do want one with the best performance I can afford. I live in the USA so I could benefit from a device with WAAS. Also the more Hz the better. I'd prefer at least 5, but 10 would be awesome.

I read this thread and I do love the small size and features of that device, however the no keychain is a bummer, and more importantly I'd really like a device that worked outta the box. I'm not afraid of tweaking settings and scripts if I have to, but I don't have a windows PC to run bundled software and that would probably make firmware upgrades pretty rough too. A no hacking necesary GPS would be much preferred. Also I want one that works well under bluetooth and doesn't require me to get an OTG usb converter for my n800.

Last but not least I wanna spend less than $100. I don't really need GPS but I would use it a lot once I get it. Its a luxery though so I can't break the bank. The closer to $50 I spend the happier I'd be.

So which GPS Small, Keychain, WAAS, Cheap, minimal n800 setup, 5hz or more, Bluetooth GPS. should I get?

Thanks in advance!