Tiny.com is different from the Tiny of old. Tiny.com is a brand of Time Computers. One thing I have noticed about them is that the components whilst they seem pretty good are sometimes not up to other manufacturers. In their machines they advertise 1024MB DDR Ram on some but they do not tell you that it is the inferior PC2700 variety (although this may be ok for your needs). They also tend to use MicroATX motherboards which do not have great expansion potential and are not as good as full ATX motherboards as far as I know (I hope my terms used here are correct, I could be wrong).
They also charge £1 a minute for technical support, charge for a Reload CD and their parent company Time/Granville have a less than greaty reputation for customer support.