I just got emailed a deal by Robert for a 8GB card from Meritline where they have it going for $39.99 with free shipping. I did notice a slightly lower price at Amazon for a SanDisk card for $32.68 but it comes out to more than $39.99 shipped.
In short this is less of a crazy deal but more to let everybody know that 8GB cards are not as pricey as they used to be. That along with the fact that OS 4.5 lets you support cards above 4GB is a perfect reason to pick one up.
Let me know if you find any better deals!