Have you tried Traverso? Again, it is a multitracker
but its designed
with quick editing in mind and runs natively under XP and Leenooks.
Normalize is indeed a key press away ( N ), export: double press enter or
click on the export button, to apply plugins you have to install an lv2 plugin
that does comp / limiting yourself, they aren't shipped with Traverso.
No lv2 plugins on windows though, afaik lv2 on windows isn't possible ( ?)
Recording to mp3 isn't possible atm, export to mp3 works (if Traverso was
compiled with mp3 encoding support which is not the default)
Regards,
Remon