[testab]

I am in the same position,have got admission to a CS grad course with an undergrad in something else.Earlier had thought that it would be doable thought now it seems pretty daunting.I am almost thinking of not taking it up as I think of the nightmarish scenarios of not being able to do well.

[fooboy]

Well honestly, schools are decent at identifying whether you can succeed in their program or not. Whether you actually succeed is a different story, but I bet its a function (maybe exponential) of the effort you put in.