[rant]Testnet is awfully hard to use for testing when mining is not consistent. It's been 4.5 hours since the last block. I understand needing to test mining setups, but I'm trying to test transaction processing for a website and I can't even seed my test payments into the chain.[/rant]
Look at testnet-in-a-box. It lets you run a local testnet, and then you can point your gpu miner at it and get several blocks in less than a minute.
http://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/
