Is there a good external merge tool for tortoisesvn (I don't particularly like the built in Merge tool). I use WinMerge for diffs, but it doesn't work with the three way merge (maybe a better question would be is there a way to force tortoisesvn to merge like tortoisecvs?)
[Edit]
After trying all of them, for me, the SourceGear is the one I prefer. The way to specify the DiffMerge from sourcegear is:
C:\Program Files\SourceGear\DiffMerge\DiffMerge.exe /t1="My Working Version" /t2="Repository Version" /t3="Base" /r=%merged %mine %theirs %base