Default firmware in new PS3s
So I'm finally getting a PS3. I've been pining after one for a couple of years, but just haven't had the spare cash until now. In preparation, I've been researching how to softmod it once I get it, to add to my collection of softmodded consoles (PS2, Wii, DS, XBOX), and have come to realize that I'm pretty much screwed if I get a console with firmware 3.56 or higher.
So, what I'm wondering is whether anyone has any up to date info on what the stock firmware is in new PS3s. I've been searching google and the forums, and haven't had any luck, but I'm not sure if that's just my failing or if it's just not an easy question to answer. I know that I can find PS3s on ebay that are clear about what the firmware is, but I would much prefer to buy new in store, if possible.
I hope that I'm not being a noob and asking something that's asked a lot, or asking in the wrong place. If I am, just point me in the right direction and I'll get on my way.