I've had PS for years, I've used PS scince for 3 years but only started doing proper stuff from the end of August 04.
i've been designing with photoshop for probably a year now. got cinema 4D yesterday so going to try that out as well.
i started making sigs 5 minutes after registering at this site which was 2 minutes after i first ventured onto this site, so about a month give or take a few days. although i had ps7 for ages & ages just didn't know how to use it.