So far the Apple iPad is only available in the US and prices start from US $499. According to the news reports, 450,000 iPads have been sold in the first 5 days. That's pretty amazing. However, there are also reports that lots of people are returning them as well.
So you just have to be patient for a few weeks and wait for the used iPads to appear on eBay for a fraction of the retail price and in fact they are already there
In case you are one of those guys who think the iPad is a phone, you better read up here.