I recently bought an Acer TimelineX (14'' version) for my mum, installed Ubuntu on it, and my impression is really good. Of course it is not all-aluminium, but

I recently bought an Acer TimelineX (14'' version) for my mum, installed Ubuntu on it, and my impression is really good. Of course it is not all-aluminium, but apart from that, the specs are nice. It cost 620€ - About half of a 13'' MacBook Pro.