I came across this a few days ago, it might be of interest you.
Weller is probably the best know name in soldering equipment. They make a lot of really nice stuff. IMHO, they do charge quite a bit extra for the name. I have no experience with this particular soldering station. I would make sure there are a decent assortment of tips available before I bought this. I did a quick check at Digikey and they didn't list any parts for this station.
If you are looking for a high quality temperature controlled iron, check out the Xytronics line. They have been around for a long time and make a nice product. They are usually 35-50% less than an equivalent Weller or Pace unit. I did a lot of research before I purchased my last soldering station and I ended up with a Xytronic 988. I am extremely happy with this unit. This is unit is overkill for what you would need, but they do make more basic units.
BTW, someone with good soldering skills likely could do the RAM upgrade with the $15.00? Radio Shack 25w iron. I bought one of these in college (when it was a $6.00 iron) and used it for 15 years to do all sorts of repairs. For fine work I would buy an extra tip and file it down. These tips don't last very long, but they are inexpensive.
That said, it is much easier to solder using good equipment. If you have access to a nice temperature controlled soldering station, USE IT. You will be glad you did.
Electronics run on smoke, if you let the smoke out they won't work