"I have been working on a freeware application that sends dinsync over the audio ports.
For now it needs a dc coupled soundcard (motu) and Apple OSX, but other options are under development.
The installer for it can be found here
If the link dies, check the server root for a new version.
Screenshot in ableton live 8:

Screenshot in logic 9;

This is how you prepare a cable for it:

It delivers instant sync as soon as you press start in your DAW.
12, 24, 48 and 96 sync modes are available.
More goodies coming soon.
rv0"
Update via rv0 in the comments:
rv0 Sync Unit & Motu Interface: a cheap pc to dinsync solution
YouTube via rv0soft
"get dinsync straight from motu audio ports using rv0 Sync Unit DC. Download here: http://users.pandora.be/dar... Windows version coming soon." without MOTU
rv0 Sync Unit & MPC Sync Track: cheapest pc to dinsync solution
"Use your soundcard to sync your old analogue gear. If you don't have a motu interface you can get this device on ebay, real cheap and download the Sync Unit for mac (pc coming soon) at http://users.pandora.be/darffader/rv0"

"The device is called MPC Electronics Sync Track and it needs only 0.5 Volt peak to peak clock level, so it will work on any soundcard." from the manual: "Bar/beat switch This switch is exclusively for Roland units such as the 'DRUMATIX' and 'BASSLINE' and works in conjunction with the run/stop switch when adding breaks or pauses to a synchronized performance. In the 'BAR' position the units being driven will restart from the beginning of the bar in which they were stopped. In the 'BEAT' position the units will restart from the next beat after the on on which they were stopped, ie Acting more like a pause" Here's a search for MPC Sync Track on Ebay. Nothing was up as I posted this, but feel free to check.