ipaq: multiple bluetooth settings problem

Hi Everyone,
I got iPAQ h1940 Bluetooth enabled device.

Depending on the location I am - I connect to the Internet in a different
way:

1. When I am at home - I want to use Internet over ActiveSync via Bluetooth.
(I got BT USB dongle at home PC, and ActiveSync on it)
2. When I am at work - I want to use Internet/Intranet over Bluetooth
Network (I got BT USB dongle at work and Internet connection sharing on it).
In addition I have to use corporate proxy to access the net.
3. When I am off-site - I want to use my Bluetooth GPRS mobile phone

I managed to configure separately each of those settings above, but how to
make them working together without entering any advanced connection settings
each time I change location?

I don't quite understand idea of
1) Bluetooth profiles in WM2003
2) Network profiles in WM2003 (i.e. 'My ISP' or 'Work')

is there a way to configure my iPAQ the way I want?

is there a good tutorial about profiles in WM2003?

any advice would be helpful,
thanks in advance,
rafal