Linux: Expect around 2-3 days of hunting for audio and display drivers and tweaking with the configs until it works
Cool! So you were using linux in 1998! It's good to see somebody that gave it a go way back then but it's changed somewhat over the last decade and a bit.
Now it's only MS Windows where you have to hunt around the net for drivers if you've lost your install CD.
In '98, it wasn't as much spending 2-3 days for display drivers as spending that (and more) time upfront researching and buying the right components. Of course, afterwards you spent far more than that tweaking the configuration, compiling your own kernels etc. to eek out as much of the performance as possible. It was both fun and educational :) That said, there is something to be said for "unwrap, plug in, turn on - done"-Macs.