OK, my Go 730 arrives today, so after I charge it, back it up with Explorer, and get Home to see it, what next? I bought a 4GB SDHC card for it, but I'm a tad foggy on how to best use this storage. I know I can put MP3s, photos and maps on it, but can POIs and/or voices go on it? I find my self wondering if anyone has written an idiot's guide to the 730. I've pulled the text of several good threads here into a tips file I keep on my desktop, so that's a start, but I suspect I'll still be relying on the collective wisdom and experience found here. TIA!