Just google FFXI Windower and you'll find Azril's Windower pretty quickly and you can get EXP Watch with that. I'm personally a big fan of sticking to lower mobs and killing faster and having use EXP Watch for quite some time I find that it only supports my feeling that this is the overall better XP/hr.

I don't know how many times I've been in a PT, looking at the counter getting 4-8k/hr while killing mobs for less than 100 XP a piece with zero downtime... then someone starts complaining about crap XP. We move to a new camp and spend 5 minutes per mob just to get 200 XP with crazy downtime. After spending some time there I'll look down at my counter to find that we're pulling around 2-3k/hr and sometimes less.

Amazingly everyone is all, "ZOMG XP is soooo much better here!!!!"

Keep in mind that in endgame burn PTs you often see numbers like 60-80 XP per mob. These are the types of PTs that can bring in 15-20k/hr. You can't expect that at low levels but the key is fast killing with little downtime. The only time this doesn't work is if it's an overcrowded area and there simply aren't enough mobs.