Recommended Software for Netbook (Windows 7)

Which software is recommended for netbooks?

On my "normal" Windows machine (actually a VM) I use Visual Studio 2008, Delphi 2010 (beginning), Office 2008, and Delphi Prism 2010. But all those seem very heavy for a 1 GB netbook.

Can anyone recommend

a) a programming language/IDE that's really usable on a netbook (in case I travel with it and need some way to write a program or am simply bored (maybe this is a good excuse to learn Ruby)

b) a light-weight word processor/spreadsheet

for my little netbook (Atom N270, 1.6 GHz, 1 GB, 160 GB, Windows 7)?

I can buy software. It doesn't have to be freeware or open source.

Any other recommended software that makes a lot of sense on a 10" netbook?

I am thinking REALbasic might be light-weight enough. I have REALbasic. But I like any excuse to try something new.

Answer

Best lightweight IDE/Text Editor @ Stack Overflow.
Useful software for netbook? @ .