I got mine yesterday.
The graphics drivers have yet to be fully implemented.
So as it stands it just runs off off the CPU making it a bit slow.
You might want to select a lower resolution if you have a graphically intense program for now.
You don't have to stick with lxde either, I've installed Openbox, Awesome and Vtwm on mine.
These are less memory intensive but come at the cost of ease of use (no desktop just a window manager).
You may install multiple window managers in Linux by using a utility like slim which allows you to select your desktop at login.
For a really ugly work around you can create a file called .xsession in your home directory and simply call the window manager inside that file.
For those not used to the terminal, nearly every Linux program has a help page or manual.
If you type "man" followed by the command you wish to learn about, you get some handy documentation.
Brings up help about the file listing command. Pressing the q key quits the manual page.
If you wish to search for a command you can try the apropos command.
Typing "apropos editor" brings up a list of text editors for example.
One last note, Linux is highly configurable so it might not hurt to purchase a little notebook for when you make low level changes to your system.
Also it is often good to make backups of your configuration files before you start editing them.
Now that was a bit long winded. Sorry.