Windows 7: MacDisc HFS+ and network ext HDD win7

Have two different external hard drives and wondering if either/both are suitable as BackUp and Restore Devices For Windows 7..



1) I have a Western Digital 750GB passport usb portable hard drive.
It is formatted HFS+ with MacDrive...

*1A) Possible/definite issues using as BackUp Device when need to restore/repair, ect on Windows 7?
1B) Will be installing windows 7 on second PC soon. Can HFS+ drive be used to Install windows 7 Image/clone (from Laptop) on new fresh Hard Drive?
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2) Second external is a network device (not quite a NAS?, but connected to ethernet LAN port on my router) it is a Segate GoFlex Network Version...

2A) Are there issues with using external network HDD as a back up device?
2B) Possible/Likely issues accessing network device if using to restore back up on crashed/damaged or fresh Windows 7 OS and/or program/user data
*** meaning will network attached drives not even be accessible if windows is screwed up or during install on fresh HDD?

Not priority, but if anyone knows off top of head...
Segate goflex network external drive has a usb connection port on back...
I know segate sells 'usb adapters/cable KIT' for some stupid cost.
*Can I connect the external drive to my pc with a normal USB cable?
If so, what type of ends exactly? (ie Male to micro/"B", whatever?)?

Thanks again everybody for support!