I found this open letter today (via Digg) , and I agree. There would be a tremendous upside to just offering a simple Mac tower (not an iMac, not a Mac Pro) that someone could take home (or order customized online) and expand with video cards, memory, etc., as they need them. Here’s a snip of the story:

A REGULAR MAC! - With no monitor and a full-height PCI-Express 16x slot!Price range: $600 - $1200. Dual-core, 1GB RAM. Nothing fancy!

I was hoping that the Mac Mini would be this product, but it is not expandable enough (the graphics card is lacking). I rely on dual monitors and a Mac Pro is not within my company’s or personal budget. I want to use a Mac, but instead I use an HP running OpenSUSE and access the Mac Mini (running OS X Server) via VNC.