My main machine is a HP Pavilion dv6000, AMD Sepron 3400+, 1 GB mem, 128 mb nVidia 6150. VL 5.9 STD fits perfectly, snappy, fast.
I use it mainly for internet/mail/programming and artwork (and 3D modelling with Art Of Illusion).
For testing on old hardware I have a little
Dell CPi running at 266 Mhz with 64 MB ram.
My previous laptop, a Dell D505, 1.2 GHz, 512 MB mem, went to my oldest doughter, running Sabayon 3.4e.
And there is a Win XP machine a Compaq Armada E700, 900 Mhz and 512 MB, mainly used by my wife for Might And Magic and internet etc.