I decided to treat myself to a new soldering iron recently and ended up buying the WES51. Briefly, specs are;

50W temperature regulated iron,
350F-850F adjustable with 10F accuracy.
ESD safe.
Auto turn off after 90 minutes of inactivity.
Temperature lock feature. ( More useful for business use rather than personal...)
Good tip variety available - down to 0.4mm.

I've just finished assembling Newguy1's tuner kit with this. I found it a joy to use - It heats up very quickly and is comfortable to wield. I thoroughly recommend this iron for anyone looking for a cost effective but capable tool.

As a footnote;
At the moment, Weller are doing a promotion through their biggest retailers with a $20 rebate. Given that you can find this unit for ~$100 from some of these retailers, that results in a $80 final cost. If you want to take advantage of this promotion you'll have to act fast - rebate forms must be received by February 28th. That pretty much means you'd need a local participating retailer. (No, Rat Shack don't stock it)