Good choices for first time DIY speaker?

I built the North Creek Rhythm kit and love it. See http://www.northcreekmusic.com/ and check out the stuff

Yes, North Creek is very good too.

Is it really worth it to build a kit? I'm just about to start my first DIY project and making the speakers from a kit seems to take all of the fun out of it. Maybe I'm being a little too adventurous for a first timer, but I was planing on designing a pair of my own.

Has anyone tried Audio Concepts Inc.? Their Titan Subwoofer looks interesting. www.audioc.com

I feel that if you want to build speakers for your system from scratch and you never did it before you should do a kit. I bought a mess of Dynaudio driver and proceeded to build one speaker (I wanted to perfect one before building the other). The driver selection, and the crossover points and order as well as the box size and shape, make it almost an endless combination. I am a mechanical engineer and designed a few machines but speaker design took way more time than I thought. I played around with designs for years and never realy enjoyed listening to the music. I looked at several speaker kit companies and felt the North Creek had the best designed crossover. I have been very happy with the speakers and for the money you can't beat them. You will need to make or have the boxes made. The design process is very hard with speaker design. You will need to do alot of playing until you are satisfied. I was never satisfied so I went for the kit.