Hey Super Star SaaS,

Here's an idea:
30/30/30 - 30% sales, 30% product, 30% wow factor.

Another:
Sell the software before you even build it. The cash you get from the sales could be what you use to bootstrap. Build the business with a few select customers until everything is dialed in. Make it profitable, then contact investors for marketing dollars.

Here's a full path to stardom:
1. ID TARGET MARKET: Identify the target market and the massive problem that your SaaS is fixing -- just the one single greatest benefit and who gets it
2. BUILD LIST: Setup a prelaunch page to collect emails - think LaunchRock or something
3. SPECIAL INVITE LIST: Invite people to get in early -- leverage your greater network (particularly your circle of influence)
4. SOCIAL MEDIA: Build social media tools to compliment the pre-launch. Reach out to potential users through social media (if you have time to write custom messages)
5. REVIEW COPIES: Give away review copies to bloggers and reviewers - ask for their feedback (your product better be solid though)
6. GET PRESS: Get the press either through #5 or through a press agent

Another great resource is the $100 Startup Launch Checklist.

If you need help dialing this in - there are a thousand ways to do it. I would be happy to help you craft a plan and execute it.

Cheers --
Nick