It's the low-end spec'd Ubuntu-only Mini, so you probably want to bump the RAM up to 1GB or 2GB and the SSD up to 16GB if you're planning on installing OS X which will add another $100, but $299 for that spec is still mighty fine. And according to Technabob, this is only going to last until midnight CST tonight. [Dell Purchase Link via Technabob]
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OMG its in the impulse buy range... must resist urge....