Yes, Google is still the top search engine you want to target with your businesses SEO.   Google has a hold over 50-60% of all internet searches.  Bing and Yahoo hold the remaining portion of web searches and utilize many similar strategies in ranking sites.

Getting your site to rank on the first page for the search keywords that you are targeting can all depends on the popularity of those keywords.  If your business, and other businesses in the same industry, mostly have websites that are merely informational and don’t rely heavily on generating business online then your site MIGHT easily be optimized for a fist page ranking.  If you are in an industry that survives solely on web search and online business then your keywords are probably very competitive and expensive.