G2/G3 buyers remorse

After much consideration and indecision, I ordered a G2 and 14-45 lens from a large online retailer yesterday. I read on here about the camera body being marked down to $300, and $100 off on the lens for a total of $500.

But now I'm having second thoughts. Should I have gotten the G3 with the 14-42 kit lens for a couple of hundred more? I probably should have quit reading G3 reviews after I ordered, but I can't help myself.

Should I send it back? Are the real-world differences worth the extra $$$?