Pocket PC Data Transfer

Background info: I have two routers in my house, one wired one
wireless+wired on two seperate IP addresses. My computer has USB 1.0.
I've just ordered an iPAQ hx4700 (has bluetooth) and would like to get
a fast data transfer as I will be constantly uploading/downloading
data to and from my computer.

1. So, what are the best options available to me?
2. Roughly how long will it take me to transfer 1GB to my Sandisk SD
memory card via USB 1.0?
3. My computer is connected to the seperate wired router which is in
series with the wireless+wired router, so can I somehow send files
from my computer to my pocketpc via the 802.11 connection? If so, how?

Aside:
4. Do the transfer rates via bluetooth vary if a bluetooth dongle is
connected to USB 1.0 or 2.0?
5. Where does Bluetooth 2.0 fit into the speed category if its:
BT1<USB1<<USB2