I picked up an old Thinkpad T43 (1.86 GHz Dothan/Pentium M Centrino, 1GB RAM, 40GB HD and Intel integrated graphics, Windows XP) and it runs Logos 4 quite well. Not a speed demon by any means but acceptable performance. Certainly better than my Asus Atom-based netbooks. I found it on eBay for $169--not bad for a five-year old machine that is built like a tank and originally sold for $2000+. Many of these old Centrino business-class notebooks (IBM, Dell, etc.) can be found on eBay for anywhere between $150 and $300. I will probably upgrade the memory to 2GB and add a larger HD at some point but I am really happy with it thusfar. Great choice for someone who wants to run Logos on a tight budget!