Mrs B,
The best headset for you is the one you like best.
Go to one of the shops and stick one on your head and walk around with it for at least 30 mins. Better still see if you can borrow some different headsets from flying mates and fly around with them for a bit.
That way you will find out what works for you.
DCs are very popular as they are well built, have a 5 years warranty and most people find them comfortable.
With the current exchange rate you can not go wrong if you buy stateside but beware of the import duty and VAT which can make the deal less attractive.
FD