I am not sure of your installation requirements, but the dvd iso images are prebuilt with Kubuntu 710. The drawbacks to this type of install, is that it will wipe your entire HDD. But the benefits are a very easy, and fast install (like 20 minutes) vs. the 1-1/2 to 2hr install via the cd's.
I have done this both ways, and I prefer the DVD install over the CD install. If you are concerned about disk space, slap a 30 or 40G disk in there, and use the DVD. If not, then just use the DVD. You will find that the install is much less painless, and you can be experiencing all that is LMCE in much less time.
Just my 2 cents