Hey, I just sold my ps3 as well! ( http://i21.photobucket.com/albums/b258/smbu2000/misc/CIMG2493.jpg ) Although, I replaced it with a dedicated Panasonic DIGA BR Recorder/Hard Disk Recorder (500GB HDD & 3 tuners! http://panasonic.jp/diga/blu-ray/bzt810_710/ ).
Anyway, If you are that worried about YLOD then your best bet is to sell it now before any announcements. Once Gamescom comes and Sony announces a new slim and/or pricecut the value of your current system will drop as well. That way you can get the maximum value for your current PS3 and then after Gamescom you can get a "new" PS3 or a possibly lower priced current slim (stock clearance?) You'd get a newer version of the PS3 (slim or super slim) and a possibly lower price along with a new warranty.
I kind of did something similar for my girlfriend. She was using my COD MW2 360 (old style 360), but she wanted wi-fi (not included on the older 360's). I found a really great deal on a new Gears of War 3 360S, so I picked that up for her. She got Wi-fi, a new warranty, the newer style controllers and a bigger HDD. I sold the other 360 to offset a lot of the price on the 360S.
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3." 
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"
