We attempt to keep the pricing up to date for our Athlon 64 Specials, Acer Tower units and Lenovo Thinkpad Notebooks but if the pricing doesn't look as though it was updated recently just email or give us a call. We also build Intel Core 2 Duo and Core 2 Quad Systems as well. We have sold way more AMD based systems than Intel based systems over the past couple years as we saw AMD a better value when comparing price and performance. Recently though the Intel offerings seem much more attractive than they had with performance UP and pricing coming more in line with AMD. All of our systems are either AMD X2 Dual Core, Triple Core or Quad Core processor based or Intel Core 2 Duo or Core 2 Quad based. It is our belief that for the little bit of money you may save from buying a single core processor, the decreased performance is just not worth it.