Some HDD sizes are now cheaper than before the Flood. The 3TB 3.5" models should definitely be cheaper, simply because the technology has matured with the move from four platters to three 1TB platters. Increased areal density has also pushed down the cost of 1TB 2.5" (laptop) drives.
I'll wait for 500GB SSDs to go down to the prices of today's 120GB SSDs before making the plunge. I have a 750GB 2.5" HDD installed on my SFF desktop, with about 300GB of data that can be moved to an external drive.
I'm also looking at installing mSATA SSDs, which cost about the same as full-size SSDs. With the graphics now built into the CPU and mSATA, I'd have almost the entire system on the motherboard, making it easier to just unplug the PSU when changing desktop cases.