Mini ITX motherboard,
Mac Mini motherboard..
Nearly the same dimensions nearly the same cpu speed, one intel one G4.
Not quite, the VIA CPUs are very weak compared to, well, everything. At the same clock speed the G4 will kick it's ass.
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Something you could set the record straight for me on is just how much RAM does OS X like to have so the OS isn't paging to the hard drive all of the time..
256MB should do fine providing you're not into heavy multi tasking.
My machine is currently using 309MB and thats running Safari (8 tabs open), iTunes, mail, SETI, 2 finder windows, Activity monitor & a desktop pager.
OS X is not Windows XP...
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Cheap HP machines:
I compared prices at an online shop and some of the machines were HP - complete with Celerons.
Levono had a Celeron with 256MB, XP Pro, CD-ROM (not DVD) and "Intel graphics" for £20 more.
I wonder if some companies have suddenly put some machines on offer because they know people will be comparing prices?