I saw there was a previous thread comparing the Karma and Nitrus for jogging. Has anyone compared the Nitrus and Cali? Since Buy.com is selling the Nitrus for ~$199, this is only about $20 more than I can get the Cali.

My current player is a cheap Diva, and the display has pretty much died, and the battery contacts and headphone jack are intermittant. It's nice that it takes cheap CF cards, but I would like to upgrade.

It looks like there is no case/armband for the Nitrus. How do you think the player will stand up to sweating (carrying in my hand)?