The PCG-FX120 is a great computer once you upgrade to XP and add ram.  An external hard drive is a must to get that extra storage, but I love mine.  Some say the motherboard goes bad, but mine works like a charm.  You need atleast 256mb ram and you can add up to 512.  Add a wireless card and you are set.  It is a cheap alternative to the high priced laptops today.