I'm on my second Land Cruiser and am a big fan of them. I don't think you can buy a better balance of stock off road capability, reliability, and comfort. My first one was a 2000 and I would still have it if I hadn't wrecked it. I had a 4X4 tundra for 4 years and recently traded it for an '05 Land Cruiser. I've put a lot of miles on toyotas and never had a serious problem beyond regular maintainence/wear items.
So here's my biased advice - for a daily driver that you plan to leave stock, look for a '99 or newer. The previous generation had less hp (smaller engine) and I believe the 4x4/all wheel drive system was different than it is on the newer versions. The pre-'99s were probably more off road capable, but the newer generation is more comfortable on the pavement. Toyota has shaped the LC into it's premium luxury SUV over the last 10 years or so and I'm sure that sacrifices some of the off-road capability and rugedness of previous models. However, I think very few LC owners have found the limits of this vehicle. Starting in '03 almost all LCs came with a nav system and rear entertainment system - which may be important if you have kids.
My take on the '05, it's smooth on the pavement but seems to have more body roll than the '00 I had before. It could just be me, but it really seems like this one doesn't handle as well as the '00 did. I've heard people complain that LCs are underpowered with the 4.7 L, but I'm happy that I get 17+ mpg on the highway and have never run into a situation where I didn't have enough power. One thing to note, the LC has the same engine as the tundra (previous gen) but the LC weighs a little more. Don't expect to win any drag races, but the LC has a low range if you absolutely need it.
I really think these vehicles are a good value if you can find a clean one with around 100K miles. Like all the 4.7 L toyotas, they are due for a timing belt at around 100K miles. Other than that you can expect them to go beyond 200k with very few problems or major expenses.