"Lubuntu can comfortably run on as little as 256MB of RAM." It can although I'd call it jogging rather than running. It can work on a P3 coppermine class laptop very nicely. However, a stock Lubuntu live CD does not come with LibreOffice. Gnumeric is a nice spreadsheet, but Abiword normally does not have built in facilities for mathematical formulas, or for making drawings. There appears [1] to be no presentation app…
1.) Open Synaptic Package Manager.
2.) Enter Admin Password.
3.) Type "LibreOffice" into the search field.
4.) Follow the on screen prompts, clicking appropriately.
All of the various Lubuntu applications I've tried run quite well on my nearly 5 year old Atom N270(800MHz) 1GB RAM netbook.Seriously, if a user has rudimentary experience with WinXP then Lubuntu will not be too much to assimilate, and the only caveats are proprietary applications, yet there exists workarounds for most, such as comphoilio's netflix-desktop - which uses a special version of wine to run Silverlight and its necessary components - to enable viewing of Netflix DRM content on Debian based systems.