Ca == California?? I live in San Diego, CA and I had my papers evaluated with ease. I even talked to a few UC professors and they believed my papers were equivalent to an American Bsc. EE. I used
http://www.thedegreepeople.com for evaluating my documents. It was suggested by an enrollment advisor at one of the colleges I was trying to get in.
Nonetheless, I think going back to school boils down to your long term goals... Having an Engineering undergraduate degree is sufficient to get you a job - probably an entry level job - but in case you plan on progressing up the career ladder you'll definitely need a graduate level education. With EE you'll manage to find a job (full time) within the range $45k - $72k/year, give or take, but to get into the six figure, you'll need to upgrade, and get into a field that pays well.... So, all you need to go for an MS in EE or Computer Engineering, etc. (assuming you don't want to change your career) is a certified copy of your transcripts, the evaluation report, and a score of 3.0/4.0 == 3.75/5.0 on the Ug scale. That's it. Not quite sure if GRE is needed for engineering course (look into it).
On the contrary, in case you decide to go solo (independent contractor) you'll have the potential of making a lot more money. The downside is that it requires a bit of experience and you are not always assured of a paycheck.