Perhaps some of the old hands here will tell me it's bad (no, really, if it is, tell me) but I do all primary and secondary fermentation in kegs nowadays. Got tired of autosiphons that just wouldn't work very well, and having to pick up buckets and risk dumping everything. What I do is:
wort+yeast slurry go into a clean corny keg, just pour it in (that's my 'aeration' but I may stop doing that if this olive oil thing works out). Put the lid on, and attach on the gas in side a gray disconnect attached to a bit of vinyl tubing going into a bucket of water/sanitizer/whatever. Wait for fermentation to finish. Now this is the good part: take your 'secondary' keg, purge it with CO2, make sure it's sealed nicely. disconnect "airlock," from primary, attach a cobra tap, put the keg under pressure. Use the cobra tap to pour out (and save for later if you want) whatever sediment comes out of the bottom, then once it runs clear, disconnect the cobra tap and co2, take two black disconnects and attach them to some vinyl tubing to act as a jumper, attach one to primary keg liquid out, another to secondary keg liquid out, put co2 pressure on the primary, and purge the secondary a bit. Voila, oxygen-free transfer.