The Lenovo ordering pages are a complete mess. Take a look at
this page, which lists the different SL400 models. Now unless I missed something subtle, the first 4 configurations appear to be identical on that page, except the first two have 250Gb HDD and the second 2 have 160Gb. Yet, there are four options with four different prices ($799, $869, $969 and $1049).
Now I assume that if you click on each of them, you'll get a different spec (probably a different CPU), but the button is a javascript thing so you can't open them in separate tabs to compare. Actually, I just tried it, and even when I reached the shopping cart I still have no idea what CPU is in the machine that I'm ready to buy, and what the differences between those four configs are. And the same thing is true for the SL500 pages.
Seriously, don't they have people actually testing their websites before they put them up for the whole wide world to see? It makes them look like a bunch of amateurs. I don't want to come off as some sort of Mac fanboy, but you got to give it to Apple, they've got the retail experience done right. Lenovo, if it's not ready, just don't put it on the website yet!