suspension upgrade

i would wait until you have the accesories fitted before doing the suspension unless you'r already haveing load carrying troubles. youcan't get much lift out of an IFS lux without spending big $'s. and articulation is the biggest limiting factor in the ifs lux so stiffer springs wouldn't help this.
that's my opinion, see what the pthers say.
cheers, simple

g'day mushroom,

my 2003 IFS has Ironman Man Foam cell shockers, Tough-Dog springs all round, 4-Way RTC dampner, the front rubber bush under the upper control arm has been trimmed to allow for another half inch. Have an extreme duty bull-bar, twin side rails and steps, rear barwork, 265/75x16 BFG AT's going to either 32/11.5x15 or 33/10.5x15 next. The car was 2.5" higher when installed and it's probably sagged bout half an inch and I got no problems what-so-ever. Yeah, you wont ever get the same suspension articulation as a live axle/coil sprung 4x4, but to get through most off-road obstacles it does the trick. You just have to be abit smart about wheel placement offroad and expect one of the front wheels to get off the ground in alot of situations.

A front diff-lock installed would help the front end offroad without all the power going to the wheel up in the air. Take it easy thou if as you say you are new to the fourby scene, when you get the front wheel spinning off the ground be careful because when you land, if your on the throttle and the tyre suddenly grips, you run the risk of blowing the front diff gears.

Slow and steady is the way to go.

Hope it helped,

TUFF_IFS_LUX