Using a credit card has been known as the easiest way to make a deposit into an online gambling site. Many online poker rooms accept VISA and MasterCard / EuroCard. The recent problem is that many banks have imposed special regulations restricting the use of an associated credit card for online gambling purposes.
VISA and MasterCard are credit cards that can easily be obtained. Your deposit will simply go onto your credit card statement or come directly out of your bank account depending on how you have its set up. Look for these deposit options on the poker room that you have chosen.