Margaux Wine

Can anyone recommend a good wine is to drink now and Margaux is currently £ 30 per bottle?

Try Prieured-Lichine Chacteau. Any recent vintage should do. Anything over 2000 vintage and you run the risk of going over your budget.

They are quite nice, but underestimated - as they are undervalued (cheaper). All are now drinking:

Chateau Giscours 2002 ~ $ 40.
Castle Lascombe 2003 ~ $ 65.
Chateau Malescot St. Exupery 2003 ~ $ 40