I have no experience with that vendor, ....but ....

I have a real bias against buying burnt (as opposed to pressed) CDs and DVDs. Most that you get will have been burnt at high speeds and/or on questionable media and can be a problem to read. Just as important, if you have a high speed connection you don't need and don't even want a DVD set of Debian. Here's why: If you install from the DVD set and scan the DVDs in the process, Debian will ask for those DVDs again every time you want to install something. The DVD will soon become out-of-date (might be even when you get them), but you'll be asked for them whenever you install anything on them. On the other hand, with a high speed connection you can do a net-install from a minimal Debian net-install iso (about 100 megs). You install everything else from the Internet. You get the most current versions of the flavor of Debian that you pick, and you can install more applications just by doing an apt-get update and then apt-get install packagename. Since you didn't use the DVDs you are not asked to dig out the old DVDs everytime that you want to install something else.

This of course requires that you have a high speed connection that you can install from. For those without the CDs or DVDs could be handy. But since the discs are arranged so that the most popular software is on the first discs, perple seldom or ever can justify more than the first 2 CDs (usuall the first has all you want), and I really expect that just one DVD would cover more than 95% of the packages that you will install (and if you are after exotic stuff it very well may not be on the second DVD either).

So I really recommend downlloading the Etch net-install ISO (or the next "unstable" iso when Etch becomes Stable, as it is expected to do any day now), burn that to disc (I use CDRW for this), and do a net-install. Be sure to select the Desktop option if you want a GUI (it will install Gnome, but you can apt-get kde once the system is set up).