TeleFragger

Ok so where to start...

I had a ipaq 3855 and used it as a pda...
well then I got a ipaq 3955 and navman sleeve (remember my $10 score??)
anyway I have used that sleeve and it works great...

however I moved to the ipaq 5555 which just came in. I bought it due to wifi and it works great.. however I want to use my ipaq, wifi and integrate into my home automation... I then found out i need wm5 for that part.... I then went up and bought a ipaq 4700

I have all my old stuff up on ebay right now but second guessing that....

What gps can I use with the ipaq 4700?
I searched here and people say they like their Belkin bluetooth GPS

I have concerns with this....

what other software does the belkin support?
I use a mess of other apps with the gps.......

how can I tell if these will work with the new ipaq?
if they wont I may have to sell the 4700 and keep the 5555 and that gps setup....

also are the bluetooth ones portable? do they take batteries and you can carry it around? i love that with my current setup...

please help as I only have 4 days left on my auctions!!!!!!!!!!!

Thanks
Jeff