My little LCD menu. Several options and features.

Hm, but anyone know if those phanderson lcds are any good?

The LCD #117-2400 operates at 2400 and is primarily intended for the PICAXE

Looking at the page, it does not look like they would be very good with arduino. They have just not been designed for it.

If they work the same way those sparkfun lcds do, I'm buying one.

Nope, they are completely different to the the sparkfun LCDs.

Yes, but I really love the black-blue, or just any other
color than the default green stuff. But where can I get 20x4 lcds,
and that serial module?

The serial backpack for attaching to any 'normal' LCD can be bought from here: SparkFun Serial Enabled LCD Backpack - LCD-00258 - SparkFun Electronics
The LCDs can be bought from almost anywhere. Ebay, sparkfun, robotics stores. Watch out for different connector displays though. The 40x4 LCD that was linked will not be compatible with the serial backpack. Compatible LCDs typically have a row of 15 connectors in the top left for connecting to.

Mowcius