I actually found them on eBay. They have a different but similar kit with an inline dimmer which is probably easier to connect up. The power supply comes with a barrel connector installed on it as does one end of the led strip (the other end of the strip has bare wire connection installed). To use the dimmer you have to first cut the barrel connector off the power supply. No big deal really but the style dimmer on the kit I ordered only accept bare wires on it's screw terminals. Also - handy tip - on the style dimmer I got - the green power terminal unplugs from it and as I mentioned, you can open the dimmers box and remove the dimmer switch and extend it's cable for a custom install or leave it in it's somewhat unattractive box. I think the inline dimmer on the other kit probably looks nicer but I dont think you can remote mount the switch like on the kit I got.
They also have the multi color kits with the remotes and whatnot. The led strips themselves seem pretty high quality and have 3M double sided tape preinstalled on the back. They also have the waterproof kits, etc. Might try one of those to install along the inside lip of our pools this spring.
I got the 3100k warm white for our cabinets. I dont like the ultra white for some things - too harsh. They also have nice little quick connectors of assorted styles which would honestly have been a lot easier and faster than soldering all the connections I made.