Financing start-ups is a craft, not a science. The company's performance, macroeconomic fluctuations, capital market fads, and serendipity each play a role in determining what the best course of action is at any time in a young company's growth.

I quoted this from an extensive article about A Start Up's Financing Strategy from Highland Capital Partners site. Try to visit it guys, it will surely give you an idea on an effective start up financing strategy that will suit best your needs.