Woo fecking hoo!!
Overwrote the previous Leedroid on my SD with newly downloaded version.
Did CWM install from SD and got more options that before. Leedroid went through rebuilding cache etc.
Rebooted but still got boot loop.
Used Fastboot to flash boot.image file again.
Reboot and finally, finally, finally got LeeDroid boot screen. Took a few mins but loaded. Charging battery before doing any set up.
But thanks for all the help Shauny and El Presidente. Greatly appreciated.
Samsung - you won't get my business (so far).
HTC - you'll retain my business for now and tho this was my noob mistakes it should not be this difficult to get decent battery life out a top of the range phone. Oh and external SD would be good. You've been warned so chop chop for next years models!!
And Apple - nice kit but forget it, you're not tying me in.
Cheers,
Alan