PM me if your looking for advice on the issue, I might be able to help.
Quickly though...
In itself, no. However gambling often comes from a desire to have more money and this is a problem.
There are things you need to consider... Will losing money hurt you? Will it hurt your friends/family?
What about the people you are taking money off, how will the loss of money effect them?
Unfortunately you need to consider all these factors... But it basically boils down to, is the primary goal of gambling for entertainment or to make money and will you hurt anyone by gambling?
If it is for entertainment and you aren't hurting anyone then no it isn't a problem.
- Edit -
You wont find any direct scriptures about gambling (apart from jesus' clothes cast by lot), what you need to look at it is the passages about love, work and helping others.