There are a few to try, it's all about trial and error. and seeing as the distros are free you can try as many os you like! First if your sytem spec is
really low i'd try dsl (*censored* small Linux)
http://damnsmalllinux.org/ It surprisingly a small and low resource Linux package, low on features and not especially user friendly.
Next i'd say Mandriva, I use it on one of my old laptops. Well established and a mix of features user friendliness and relatively low system resources.
http://www.mandriva.com/If you're looking for something that is closer to Windows and very user friendly i'd say Ubuntu. It's what i would suggest to a new Linux user. easy to transfer over from windows to Linux. but does come with higher system requirements.
http://www.ubuntu.com/All the distributions above are free to download and work as 'LiveCDs' which means if you burn them to CD you can boot to that CD and just run without Linux touching your hard drive, which is great for testing and trying out the distro.
FB
