CDs, Bonds, Index Funds, Stocks... Ratio Question

[toss]

I've read in the Intelligent Investor (at least I think I did) that a good starting ratio for a begining defensive investor is 70% Bonds and CDs and 30% Stocks. I have around 5k set aside in a Savings Account. Should I keep it in there for now or is it enough to start buying bonds and investing in an index fund? I also hear that dollar cost averaging programs into mutual funds is another popular choice.

My goal is to become a defensive investor earning something like a 7% yield . Thanks for your help and I apologize if my questions are too vague.