can anyone advise on the best way to upgrade my old macbook
it meets the spec for lion c2d 2 gig ram etc etc but i'm only on 10.5.8
can i just go to my local apple store buy a copy of lion for £30 or whatever it is and throw the disc in and reinstall?
No because there is currently no such thing as Lion on disc. The only way is to upgrade to 10.6.8 and then buy it through the app store.