You were thinking of a spec like this right?
http://www.worldofwarcraft.com/info/classes/rogue/talents.html?0053201054401025210513023050020030000000000000200000000000000000000
That's a good question, I haven't looked into that yet, but hopefully one of the gurus here has:)
If not you can try 'Foreshadow's sustained and burst rogue DPS calculator' at http://pvp.net.tf/ and plug in the #s and see which is theoretically better.
Edited, May 6th 2007 6:20pm by mahlerite