Which certification should I opt for

There aren't a lot of programming certs out there, right? Too bad for you that I'm not a programmer myself, but I can offer you this experienced advice about what I've seen from m y side of the fence.

I-Net+ and CIW certifications are valuable for someone in your arena. If you have experience and have a job already, then you're probably aware of what it takes to get a position in web dev'l. These two certs are starters, basics, then push on to language specific certs (if there are any), by searching google.com for "java certification", "flash certification", whatever... You know what you need to do now... adapt this info to your career area and go for it.