| Nemesis Destiny |
A very slightly tweaked version of Chaosium Basic Rules(Runequest) - with D&D magic/spells.
We started working on a conversion of my homebrew D&D setting to this a couple of months back ... and hoo boy has it worked well.
I have a simple and effective conversion system for 1/2/3/3.5 D&D, so I'll still be buying Paizo (and other tpp) 3.4 & PFRPG stuff - but system wise in play it'll be Runequest. No question. It's just so much smoother to play, and wonderfully descriptive, really encourages roleplay too.
My tweaks have been added to allow pcs to grow a bit quicker in power (to cater for the nasty D&D monsters etc), but is basically RQ/Basic Rules.
Do tell me/us more about this conversion system you have invented, sir. I would be very, very interested in trying it out, as I love CoC's RQ-based rules, being that they are fast, make sense, and exceedingly easy to learn.