I'm not aware of many options between shield of the frozen caverns / pally starfall and the equivalent and tier one raid stuff: arena lord's protector and za`yth shield, and the cmal 3 shield which probably can't be obtained by any group that isn't geared at least at the tier 2 level. There's also the SK only shield, shield of defilement or whatever, but that doesn't help pallies (or wars) much. I imagine there are one or two others I'm not aware of, but let's face the facts: shields are one of the most underrepresented slots.
Any comment on whether this big gap is intended, or whether there's a chance of getting some more put in?
I would suggest having tradeskilled shields at the mithril, warpmetal, and deepmetal levels, having a tmap shield (maybe easy or moderate-level gear), and one or two from mobs--maybe something in the high 40s-50s range and another in the 60+ range (eld's castle or outer FG type difficulty).