It's definitely possible, but I think there's no point doing Further Maths GCSE at the same time as A Level Maths - just do A Level Maths (and then Further). You'll want to do GCSE Physics before A Level obviously, and it will be very helpful to do the Mechanics modules of Maths before the Physics one, because they'll be easy :P
Also, if you're smart, it's probably pointless doing ICT GCSE - just do ICT or Computer Science A Level and take a bit more time over it instead.
There's no reason to do the others in any particular order - just make sure you're doing them all in enough time (and congratulations on avoiding English Literature GCSE! )
// hey I got ninja'd :P