i do like those logitec keyboards, but the merc allows me more versatility.

honestly though the best thing to do while looking at keyboards is try to find multiple local places you can go and see how the keyboard feels for hand placement. you won't know if it's comfortable until you actually place your hands on a keyboard to see if it fits your hands well or not.

there's the option for the merc so you can compare it with the logitec keyboards.
http://www.newegg.com/Product/Produc...lseries%20merc

this is a more inexpensive keyboard by the makers of the merc. i used this board for years before going up to the merc. it has changeable keysets that you can switch from a gaming keyset to a full keyboard. the 2 together for @$50 is a deal. it's especially true while it's on sale for 35 right now.
http://www.newegg.com/Product/Produc...82E16823161013