How to make a box cover?

It's really hard to get MDF painted and stay looking nice.  A better way, if you just want the face of the enclosure done is to paint the back side of a thin piece of clear plexiglass cutout to the shape you want to cover.  Put it paint side down, and use the subs or screws to hold it down.  This will give you a super high gloss finish. 

extremej, do you have any pics with the different colors?  I would be interested in that.  And about what would a shop charge to spray a typical enclosure?

I thought about the plexiglass idea, but the only thing is plexiglass is pretty hard to cut without cracking it. How did you go about cutting it so it didnt crack? 

double stick tape it to the face of your eclosure before you attach it (if you are making it) or before you carpet it.  Using a router with a flush trim bit, cutout the shape of the face at a medium speed.  If you use a thick plastic [which isn't necessary unless you are making the face out of plastic, instead of just a cover] you may need to spray wd40 or liquid wrench on it as you cut.  Then peel it off, paint the back of it, and attach it paint side down.  If you don't have a router, you can use a rotozip or a dremmel with a rotozip crosscutting bit.  Set it on the lowest speed, and it should cut the plastic (slowly) and not the MDF.  I've got a picture around here somewhere,  I'll post it if I can find it.  

Hmmm, let's try this again.

This is a speaker enclosure I did with solid black plexiglass from selectproducts.com.  I'll keep looking for the painted one.

My picture are too big.  Here are the links.

http://www.motorpride.com/PhotoGallery/Large.asp?SiteID=930&FileID=7121

http://www.motorpride.com/PhotoGallery/Large.asp?SiteID=930&FileID=7122