Purchased 60 Gig March 2007 - Died April 2009 (YLOD)
Refurbished 60 Gig April 2009 - Died one week later April 2009 (YLOD)
Refurbished 60 Gig May 2009 - Current

bought 20gb model week after launch but it has since been upgraded to 120gb and in my new home i use a netgear wireless n bridge for internet access. the lack of wifi never bothered me till we moved into the new house and it was no longer practical to put router/modem near ps3

60GB upgraded to 320GB Super PS3

60GB PAL September 2007
Upgraded HDD to 250GB

no problems...yet
not even an controller sync issue
it's only frozen during Fallout 3, but that's not Sony's problem lol

80GB bought on 24/01/09, had problems with reading the hdd on startup a few times, but usually it's fine.

60GB full BC refurbished - Aug 2009

(upgraded to 500GB Jan 2010)

works like new

60GB - Jan 07 (YLoD Dec 08)
60GB refurb - Jan 09, no problems
40GB MGS4 LE - Dec 08 (500GB HDD, no problems)

40 gig and I want to say may 2007 but I may be off by months. Never had an issue with it other than space.

phat 160 GB in dec. 09

40GB June 2008 running strong

80GB Novmber 2008 bluray lense problem (replaced under newegg warranty)