i stumbled across a web sight called total chaos fabrication. the are offering a ifs lift for the xterra. its a coil over conversion kit. has new lower and upper control arms. they got rid of the ball joint and went to a uniball design. new longer shaft for the driveaxles. seems pritty nice.. they also offer a uniball design for the tie rods to stop them from binding after the lift. check it out, www.chaosfab.com, and tell me what you think. im seriously considering buying it

Mighty expensive I'm sure, and I don't care for the wider front track width myself. For the money and trouble, I'd definitely go solid axle instead.
There is lots of good discussion on the TC lifts at xterraownersclub.com and nissanoffroad.net

Brent