My chair is an IKEA Malkolm in black: http://www.ikea.com/us/en/catalog/products/90196804/#/40196806
My desk is from the Galant series at IKEA... I've got the 47.25" x 31.5" top in gray-brown: http://www.ikea.com/us/en/catalog/products/S49895955/
The desk series is modular so you by extensions and link together multiple parts to make a huge custom unit, as well as accessories for things like a keyboard shelf and cable management.
I love the desk, although I can see how the lack of drawers might be a turn-off for people. Plus since I use a monitor arm to get my monitor to a proper height, the extra depth makes it feel huge, at least until the junk starts to pile up on it.
The chair I'm less thrilled with... it's comfortable but not the most durable. Although, coming in I knew it would only be a placeholder until I can afford to invest in a good chair.
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