Cardas solder is very easy to work with. Actually, it sometimes helps to melt your existing solder points with a tiny bit of Cardas solder. A lot of cold solder joints are hard to heat up and melt.
I know you are not serious about doing soldering, but avoid those 25 or 30 watt hobby level soldering irons. You really need a good power supply and solder tip heating element to keep the heat constant and hot enough. You should consider anything that is at the 60 to 75 watt level.
If you have a digital soldering station, I would recommend temps between 350 and 399 degrees Celsius. Do not go above 399. If you are using a larger tip (such as a 2mm or larger), I would try something between 350 and 370 C. I have seen traces being lifted off the board with large tips at 399 degrees. I would be conservative on initial temps because not all soldering stations may show actual temperatures. Start around 350 and work up from there if you really need the heat.
WASH YOUR HANDS after you work with solder or soldering tools. Like others have said, lead is still a component in many solders.

