Emirikol
Adventurer
That's really rather good. How's it running in practice? I was considering the only house rule for a WFRP game would be 'no being epic. ever.'
We started with Ashes of Middenheim and I'm pseudo-integrating Keep on the Shadowfell as part of the HERDSTONE chapter. I put the Demon in the Skull inside of the Keep and made it guarded by the greenskins, rather than the Beastmen (SPOILER: this makes more sense because otherwise the beastmen could simply be bought to get the skull to " he who wants it.")
D&D 4e is the real change though. WFRP, although a really fun system, was not what I wanted to run. Many of the "rules" of the system were not something that I wanted to integrate into D&D, because I didn't consider them critical for running a good campaign. For example: hit locations, nit-picky equipment or skill conversions, and INSANITY AND MUTATIONS is somthing that I want to keep as a role-playing aspect rather than a hard rule.
In play, the chaos charts, rarely anything serious, were something that should ADD to the adventure, rather than end it..especially in a combat. One of the issues is that we started straight 4e without chaos and are now implementing it...although the players knew it was coming, it would have been much better had I warned everyone ahead of time. The "Paladin doesn't have to make the first chaos roll" was a rule that NEEDED to be added, after I quickly realized that he'd be affected so much more often and with "less magical implication" than say a cleric or wizard.
We don't have a warlock in the party, but I'm thinking of making that class more dangerous for the chaos stuff..like giving a -2 to the chaos manifestation d20 roll or something (making it more dangerous and likely to be bumped up one severity)..but we'll see.
All and all, using the careers as a roleplaying thing has been interesting for role-playing. Eversince first edition Warhammer, I always asked my players to put their "profession" in their D&D backgrounds..because "classes" are not logical as a profession.
Otherwise, it's just D&D in THE OLD WORLD

jh
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