If you dig well enough, you will be able to source the HP TouchPad tablet quite easily. We managed to find a reliable supplier online, which is called 3Monkeys (like the PR agency) and which sells both the 32GB and 16GB version of the HP TouchPad for a premium but not as expensive as the others.
The 16GB model is on sale for £170 while the 32GB one costs £30 extra. You will have to add £8 to the price of both for delivery. While this is nearly twice the cost of the suggested retail price of the TouchPad when the fire sale was announced a couple of months ago, it is a matter of take it or leave it as the stock on sale is a one off and there won't be any additional units coming.
The models on sale at 3Monkeys' Ebay store (opens in new tab) are brand new, unused and unopened with a full one year warranty from HP.
Android has come to the HP TouchPad so it would make sense to grab the WebOS-based tablet and swap the OS for Google's own.
As a reminder, the TouchPad is powered by a Qualcomm dual core SoC clocked at 1.2GHz, comes with 1GB RAM, 16GB (or 32GB) onboard storage, a 9.7-inch 1024x768 pixels screen, Wi-Fi, Bluetooth and a 1.3-megapixel front facing camera.