I've only been playing a couple of months and tried my hand at tanking for the very first in my first dungeon last week. I ended up grouped with 2 really well geared lvl 60 DPS, a BLM and a BRD and a high level healer (all scaled down of course). No matter what I did, I lost aggro on almost every pull. We didn't wipe and nobody complained, however, it wasn't a great tanking experience and I haven't tanked again since. It's time to try again I think