I've got one of the B versions, and I've upgraded it to a D version.
Like RAZ says, you can get these A or B's real cheap now and just upgrade the firmware.
I really would like a newer led version but saying that..... I haven't bought one yet.
TBH my B version is pretty amazing.
Where do you live Nathan??? In a few months, I might be tempted to buy a newer version, then sell you mine cheap