Haven't got down to the job for a while but now done.
Thanks for mentioning LVM - didn't know about it previously. Found a really useful write up at http://www.tldp.org/HOWTO/LVM-HOWTO/
All read that easiest to install Windows first then linux. Windows can fuss if done the other way around. Tried both anyway - noted that u cannot put windows into standby if not install on first partition.
The Suse installer is quite smart with setting up LVM - just remember to specify correct mountpoint eg I've got Photos on a 50GB LVM 'partition' mounted as /home/myname/photos.
Of note also Windows recognised the LVM volume as a drive and assigned a letter to it. If u click on that it asks if u want to format it.....not good especially if others using it. I've disabled it in windows(right click, properties, do not use device)