You can get any modded system you want, but would the one you happen choose be a 24k Gold Playstation 3? Computer-choppers just brought out the luxurious case mod which starts at $4,999. Each system comes with two 24k controllers and a 1-year warranty, if you know, your Playstation 3 turns into a gold paper weight.
You can also further customize the unit to your liking, adding certain other materials like diamonds to the front. There's also a jeweled limited edition model that is about to release with a lifetime warranty. Can you guess the price on that piece?
It's interesting that with these case mods, the price of the unit is at least over 15 times the price of the original hardware. This makes it very hard not to just buy a regular PS3, keep it shiny, and spend the rest of the money on some stellar Samsung LED TV or new Sony Bravia (which by the way is compatible with the new PS3 slims).