Count me in as doing my first tri this August. 1/4 mi swim, 12 mi bike, 5k run. I'm scared to death but excited as all get out too.
I'm swimming at the YWCA a few times a week and definitely starting from square one. Never swam other than swimming lessons (and I am adequate...but NOT in shape for swimming). I've done a couple duathlons but this is new. It's how I'm ringing in my 30th year. 
I'm excited to read reports from the newbies this season! We've gotta stick together!
2007 Trek 5000
2009 Jamis Coda
1972 Schwinn Suburban
"I rejoice every time I see a woman ride by on a bike. It gives her a feeling of self-reliance and independence the moment she takes her seat; and away she goes, the picture of untrammelled womanhood."
Susan B. Anthony, 1896