BT Headset and MS Intellimouse working on same dongle - possible?

Have a new Fujitsu N6010 laptop for which I purchased a Microsoft
Intellimouse Explorer for Bluetooth. I like the mouse and it works fine with
the MS BT USB dongle. However I want to get a BT headset for VoIP and am
wondering if anyone can point me in the direction of a hardware combination
that will allow me to run both the mouse and the headset simultaneously over
the same USB dongle/software setup. I have XP Home with SP2. Very new to BT
but as far as I can ascertain the MS BT stack does not support a HS profile?
So do I need another dongle and drivers to get this all working. Any
recommendations for a dongle and headset that would support this combination
(and hopefully is known to work well) would be great.
Ta.