If assembling the twenty thousand pieces of an Ikea computer desk leaves you more panicked than say, showing up to work without your pants on, the store does offer the name of a service that will do the building for you.
Konkord Assembly, Inc. (800) 600-6171 doesn't come cheap, but for an extra $40-$100(per item) someone will come to your house and decipher those cartoon-coded directions that leave many of us with three extra pieces in one hand and scratching our head with the other.
The Ikea PAX wall unit with sliding doors is great looking and we've used it for a few offices and bedrooms. There is no way that we could have attached the sliding doors on our own. A call to the folks at Konkord was a necessity, and after complaining about the extra money, we realized that the unit was still so much less than anything else around.
PS: Our guy left us to deal with the huge amounts packing trash from the units. Next time we will insist that they help with carting the heavy garbage away.