As of Jan. 2010 the baht is floating between 33 and 33.5 baht to the US dollar.  Check the currency calculator for an accurate exchange rate:  http://www.xe.com/ucc/

Automated Teller Machines (ATM) are plentiful throughout Thailand, and most accept cards of the major international networks (Plus, Cirrus, etc.)  Travelers Checks are generally accepted only at exchanges, and not elsewhere.  (leave them at home and travel with your ATM cards)

NOTE:  Recently International credit or debit cards are being charged a fee of 150 baht PER TRANSACTION from all ATM machines in Thailand. 

Major credit cards such as Visa, Mastercard, are accepted at most hotels, restaurants and major shops.  American Express is excepted in some larger or high end establishments.  Many businesses will charge you anywhere from 3% to 5% to put your purchases on a credit card.  However, larger hotels and shopping malls will honor the card at no extra charge. 

If you on an extended stay in Thailand, you might find it convenient to open a 'SAVINGS' bank account in one of the major Thai banks (Bangkok Bank, Kasikorn Bank, Siam Commercial Bank). You'll only need your passport and 200 baht to pay for the debit card that will be issued within minutes (you can also choose your pin code). You'll be able to take money at any ATM. There will be a small charge (20 baht) when you withdraw from other banks. In addition some cards allow you to pay directly in hotels, restaurants, shops.  You can request an "International debit card" which you will be able to use back home.  No reason to carry alot of money around, as there are ATM's on just about every street corner throughout Thailand.

Below we have listed banks in Thailand with Web Sites.  There are many other banks having branches in Thailand.

Thailand Banks with Web Sites

Banks	Address	Telephone /Fax	Website/E-mail
Bangkok Bank	333 Silom Road 10500, Bangkok	T:(662) 231 4333	www.bangkokbank.co.th
Bank of Asia	191 South Sathorn Road Bangkok 10120 Thailand	T:(662) 287 2211/2212/2213	www.boa.co.th
Bank of Ayudhaya	1222 Rama III Road Bangkok 10120 Thailand	T:(662) 296 2000	www.krungsri.com/eng
Citibank	82 North Sathorn Road Bangkok 10500 Thailand	T:(662) 232 2000	www.citibank.co.th
DBS Thai Danu Bank	393 Silom Road Bangkok 10500 Thailand	T:(662) 233 9160/1/2/3/4	www.dbs.co.th
HSBC Bank	HSBC Building, 968 Rama IV Road Bangkok 10500 Thailand	T:(662) 614 4000	www.hsbc.co.th
KASIKORNBANK Public Company Limited (KBANK)	1 Soi Kasikornthai Ratburana Rd Bangkok 10140 Thailand	T:(662) 222 0000 F:+66 (0) 2470 2749 SWIFT	www.kasikornbank.com
Siam City Bank	1101 New Phetchburi Road Bangkok 10400 Thailand	T:(662) 208 5000	www.scib.co.th
Siam Commercial Bank	9 Ratchadaphisek Road Bangkok 10900 Thailand	T:(662) 544 1111	www.scb.co.th
Standard Chartered Nakornthon Bank	90 North Sathorn Road Bangkok 10500 Thailand	T:(662) 724 4000	www.standardcharterednakornthon.co.th
Thai Military Bank	3000 Phaholyothin Road Bangkok 10900 Thailand	T:(662) 299 1111	www.tmb.co.th
TISCO Bank Public Company Limited.	TISCO Tower, 48/2 North Sathorn Road, Bangrak, Bangkok, 10500 Thailand	T:(662) 633 6000 F:(662) 633 6150	www.tisco.co.th