monboesen said:
Once the players are allowed acces to third party material...
We don't allow 3rd party books. We use anything that WoTC/TSR puts out, and that pretty much is it. We had a Freeport campaign going there for a short while, but we never really even used any of the PC options from those books.
Regarding our access to multiple sources, the only characters that use more than a handful of non-core materials are the two group tanks...Grimm and Ike.
Otherwise, we have a straight human monk (who has 2 feats from Complete Warrior), a halfling fighter/rogue (has Improved Buckler Defense from CW, but otherwise completely core-built), a straight dwarven cleric (who uses a few BoED spells, but all feats are core), a straight aasimar sorcerer (aasimar is in the Monster's handbook, so is considered a potential 'core race', and he has all core spells and feats), a dwarven Mystic Theurge cohort (has 3 feats from Complete Divine, otherwise all core), and a part-time human Red Wizard (again, in the DM's guide so all core).
Grimm and Ike are a very different story, but IMHO the construction of viable high-level party tanks is much more dependent on the options that the various sourcebooks offer. A Fighter 20 held to the core rules is at a much greater disadvantage than a sorcerer 20 or cleric 20 held to the same books. Shoot, a cleric 20 made for melee combat is easily head and shoulders over a fighter at beating things down. While it can be said that warrior-types are ascendant at the lower levels, it is little solace for the character that can't contribute past 15th level. So that character's player has to be like the guys working on the Six Million Dollar Man.
"We can make him stronger, faster, tougher. We can rebuild him. We have the technology (or cheesy sourcebooks)."