Extra Arduino's

I have only had my Arduino Duemilanove a little more than a week and am truely enjoying playing this thing. I have successfully worked on all the tutorials. My question is this, If I make a project (example.. a scrolling message 8x8 matrix) and want to enclose it in some sort of case, will I have to also enclose the Arduino and then buy another one for my next project? Is there a cheaper way around that?

Also i was directed to a program called "Processing", is this and all it's files compatable with the Arduino? I have very little programming experience and wonder how much I would need to do to get the files to work with the arduino software.
Thank you

Also if this is posted in the wrong catagory i apoligise, I just dont know any better

I have only had my Arduino Duemilanove a little more than a week and am truely enjoying playing this thing. I have successfully worked on all the tutorials. My question is this, If I make a project (example.. a scrolling message 8x8 matrix) and want to enclose it in some sort of case, will I have to also enclose the Arduino and then buy another one for my next project? Is there a cheaper way around that?

There are less expensive/smaller arduino clones you could use - google RBBB and also "arduino hardcopy".

Also i was directed to a program called "Processing", is this and all it's files compatable with the Arduino? I have very little programming experience and wonder how much I would need to do to get the files to work with the arduino software.

"Processing" is an environment that runs on a PC - the language looks a bit like arduino's and some of the concepts are the same. It's a great way to communicate between the arduino and a PC and there are lots of examples. Processing is quite a bit more powerful than the arduino and has a lot of graphical capabilities.

There are less expensive/smaller arduino clones you could use - google RBBB and also "arduino hardcopy".

you can also just wire the chip up directly like on a intergrated pcb or perfboard. the arduino minus power, headers and the serial to usb chip just leaves you with a resistor, couple cap's, resonator (or a crystal and its stuff) push button and a chip

and even half of that would be optional