We are working on our own web page optimization and positioning before we claim or recommend anything for others.
As of 21-Feb-10, we were fairly well on our keywords (words as in sitemap) for our pages excluding high importance keywords like website/design/development (we are continuously monitoring them) and focusing on few more keywords . Of the three search engines, yahoo seems more un-certain (in some of our keywords cases) than Bing or Google i.e., one day if we are one among top 100 next day we may not found any ranking (Yahoo must be working out on something). we are working on the website on-page optimization while our website is in Google's sandbox and also not visible on Bing (for high value keywords). Yahoo seems to be including us for high importance words. We understand effectively that we are still in search engines sandbox (21-Feb-10). You can review our search engine inclusion experience where we will continue to add our experience.
Even after 7 months the website is nowhere displayed for its keyphrase included in domain name in Google. looks like stiff challenge has to be met before Google takes us for them.
This page is not exactly as per the title but we would like to wait to put actual content (may not be good idea as per search engine crawling, but we will definitely not want prospect customer to get in an comment "hey you yourself are not good in ranking and you are pushing yourself for SEO Works"