ok, bring uk sterling with you for Thailand as you'll get a better exchange rate but for cambodia and vietnam your better off with $us! the atms in cambodia give out $us but the smallest note you can get is $20... in vietnam they give you Dong and charge you for taking money out of the atm (its an atm charge not a bank charge)
i'd suggest changing some sterling into $us dollar and bringing it with you for cambodia and vietnam... you wont get a good rate changing sterling to us dollar out here, its better to do it in the uk...
If possible, it'd probably be best to change your £ to $US before you come to South East Asia, as you'll probably be less likely to get ripped off by people trying to give you a dreadful exchange rate in the UK to what you are if you change it when you get to Vietnam, Cambodia and Thailand. In Cambodia $US is the preferred currency for almost everything a tourist would want except the food and drink from street sellers and even then almost all would accept $US. It'd definitely be best to get a supply of mid-smaller note denominations like say 7 x $20 notes, 5x $10 notes, 10x $5 and 10x $1 notes (all good quality notes, no severely damaged ones). At least doing it that way you won't be stuck getting a wadful of Vietnamese Dong, Baht or Cambodian currency which will be impossible to change almost anywhere outside of South East Asia. Pounds would be easy to change, but you'd most likely get someone try and tell you the rate is a certain amount when actually it should be considerably higher than that. At least with $US everyone there knows the rate for $US and after a day or two you would know, but with £ some people probably would have no idea what the rate is and just make one up.
Thank you everyone for all your help!
I will probably take pound but will have some USD for the countries I am going. This all very new to me so thank you again!
[ Edit: Edited on Feb 13, 2007, at 5:30 AM by Trace88 ]
hi just to share what i've read...
don't change ur money for cambodian riels because basically they are useless after u leave the country. n i've heard that USD is the currency de facto in cambodia...
have a safe trip.
USD is probably the only currency that is accepted in MANY countrys of the world today...after all they trade oil in USD
USD is way easier to get rid of than any other currency in the world.