Glyn - I just watched a video clip with some Roger Dean comments on the artwork you have posted as your profile pic.
Good stuff.
I would suggest doing some compatibility homework,should you choose to consider a Firewire interface, particularly using a laptop.
Firewire works great, and many have good Win 7 drivers, BUT there are potential hardware issues with SOME (not all) chip sets used for the Firewire on motherboards. Because of the fact that this posted is going to use a laptop, I recommend either being careful to check the chip set compatibility FIRST (Saffire has a downloadable chip set compatibility checker) OR shop for a USB interface.
I have never had any issues with any USB-connected interface, EXCEPT where I accidentally used a USB 3.0 port and they had told me not to.
At the same time, I have nothing against using Firewire - just be careful as I indicated, due to potential chip set problems on the motherboard and the interface.
Bob Bone