Why bother with getting Euro's and being stung for two lots of commission (sterling to Euro then Euro to Lev), use sterling as your second currency and you will only get hit once.
We go every year and I check the lev exchange rate with one of the instructors before we go.....I have never taken Lev or Euro I take new Bank of England notes and have no prob whatsoever changing them to lev and it is much much cheaper and no commission