if u arent too picky about the lcd screen razer have a new keyboard out that like $10 more than g15 and the razer lachesis (mouse) is similar to the g9. but i chose g9 as i have never used a razer mouse.

i had a g5, broke 4 months. started losing power lost the receipt, plus bro bought it for me so didnt know where it was from.

g7 - i suggest not. u only have 1 set weight, g5 and g9 is adjustable.

g9 - very confortable not that bid, great pads on the base. awesome adjustable dpi and i got purple led's

i suggest look at forums like i did for my headphones, should be easy to find a great review of each mouse

i highly recomend G9!!!! and G15,

i have a mate very hard to please with Keyboreds and mouses, i suggested the G15 Refresh and he loves it, so i'd take his word *he buys all the Proffisonal stuff, e.g razors and junk*

G9 +G15 Refresh

Added (2008-04-06, 2:15 Pm)
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negative. g9 is better. and g15 is similar to lot of other keyboards. just got an lcd. the new razer keyboard looks insane. blue not orange backlit