From Ed Tittel (IT Certification Guy)
You’ll want to look at current salary and certification survey results from CertCities.com, Certification magazine (www.certmag.com), GoCertify.com, and Foote Partners to get a sense of where the real money is, and where the current and future action will be. Security, architecture, and networked storage are all good areas to dig into, whereas MCP and CCNA are strictly starting points on the IT cert path and by themselves unlikely to lead to a higher salary, though they can lead to other certifications that will ultimately pay off.
Ed is definately right on that point. If you are just starting out and are more familiar with windows then go ahead with the MCP. after that get your CCNA. these two will get your foot in the door. if you want to work towards higher salary then go for a security degree such as CISSP or a related security course. this area is growing faster with every threat that comes out.