I just passed SCJP 1.4 today, with a respectable enough 77%.
Yeah, I know that 77% is not that great, but it came after only 3 days of study, 2 Whizlab practice mocks (which are definitely harder than the exam), and a two-day Java intro course about three years ago. I otherwise have zero Java experience.
So 77% looks a little better in that light. The secret in the sauce is, first and most importantly, that C# and Java are nearly identical in most fundamental regards, and that I've been a C/C++/C# programmer for twenty years now. It probably didn't hurt that the Java intro I took three years ago was with Allen Holub, who hammered anonymous inner classes, leaving me with a lasting impression of one of Java's more esoteric delights.
At any rate, I'm pleased to have the cert. I'm on my way to the ICED, because I'm tired of being locked out of good jobs just because I'm short on demonstrable J2EE experience. I figure a solid grasp of the J2EE/.NET combo and a focus on Web Services will help me to balance my portfolio.