K-Mart have reduced an A4 5 page strip cut shredder for $10. I've seen this at 3 different K-Marts in the past month and at all stores it has scanned in at $10 despite a $24 price tag - so I assume it's nationwide. It's the first time I've seen more then a few on a shelf. I counted over 20 at K-Mart Altona Gate (VIC) this afternoon.
http://i41.tinypic.com/ogly6h.jpg
I've used mine a few times since purchase and personally think it's been worthwhile. The motor seems strong and have only had one jam which I was able to fix quickly. It has an auto feed function as well as manual forward and backward feature. Plus K-Mart have a great return/refund policy if there is an issues with it.
Note: There is also a cross-cutting shredder that looks almost identical to this but is priced at $24.
One advantage of cross-cut that's not immediately obvious to those who haven't used shredders is the bin fills much less quickly. Strip-cut produces long strips that curl onto themselves - wish mine would die already so I'd have an excuse to upgrade.