Well, it looks like my DSL is stabilising, and it also looks like the BT gear has determined that my line is capable of 6 MBit/s at the IP layer (even though the ATM side is still syncing at 7!).  SNR on the downstream has gone up slightly from when the measuring was going on – it’s now 6 dB!  A quick test of the download speed this morning courtesy of ftp.mirror.ac.uk showed a nice 620 kB/s.  Woot!  I should also have a faster uplink now, so this site should get a wee bit faster.