60/40 with flux core will be fine- I prefer the lead free stuff, but apparently 60/40 flows better = **shrugs shoulders**

ok cheers, thanks for the help

How do you preserve your solder tips? I put a blob of solder onto it, is this a good idea? It's a bit brown now, but I think that's due to the heat.

Before putting it away, clean the tip on some fine sand paper/ sanding block or similar, then tin the tip. Keeping the tip clean & cleaning + tinning it regulary during use will do wonders for the quality of your joints and keep the tips in good condition.