+1 for the FX-951. I am happy with mine and with the TEquipment.net discount, I got the iron, 5 tips and tip holders and an extra brass curls for $287 USD. It is still on sale for $236.49 USD before discount. I also scored a great deal on a Metcal MX-500P II. I have the Talon tweezers, wand and cradles all in for $140 USD without tips. I got the Metcal after I got the Hakko and as much as I like the Hakko, if I had found the Metcal deal before the Hakko, I wouldn't have purchased it and would have kept my Hakko 936 as a second. Right now, I am using both about equally. The only change I am going to make is set the Hakko power save for 5 minutes instead of the default 0 minutes because it is a bit slower than the Metcal to wake up. If you do get the FX-951, make sure you put a piece of electrical tape over the piezo buzzer, it is annoyingly loud.
I can say the 951 is a HUGE step up from the 936 (888) in every way possible. Faster heat up, faster recovery time, faster and easier tip changes, more comfortable wand-there is simply no comparison. I am not disappointed with mine and you won't be disappointed if you buy one. A sensible set of tips will let you do anything you need.