Wannabe -
If you're not scared about becoming a mom, to any child, I'd be shocked. It's an increibly daunting thing. Adding a transracial element adds yet another layer of complexity but not one that can't be overcome. Yes, there are transracial and/or international adoptees who grow up to feel very angry at having been removed/isolated from their cultures of birth. There are also those that don't feel that way (for a variety of reasons). There are things that you can do to try to ensure that your child is not among them (I say try b/c no matter what we do our children will probably do/say/think what they want anyway). I think it takes an extra specially committed person to raise a child of another race or ethnicity to not only be proud of him/herself as an individual but also of their ethnic group. You're miles ahead of many in that your considering the long-term ramifications so early on in the process. Best wishes!!
http://www.nysccc.org/T-Rarts/T-Rarts.html is a great resource. The ask the experts feature also gives you access to some great minds.
Pact also has some great resources:
http://www.pactadopt.org/press/articles/index.shtml