Hello , I think that the best option would be the corsair vengeance k70
http://www.ncix.com/detail/corsair-vengeance-k70-cherry-mx-cb-82424.htm .
It is a mechanical keyboard , you can order it with preety much any chery switch(es) you want , it's great looking , it has tons of feautures , and its backlit . I know it's a bit of your budget , but trust me , it is worth of every cent you'll give to have it :
https://www.youtube.com/watch?feature=player_embedded&v=qQyp3wVu3ho
Another alternative would be the corsair raptor k40
http://www.ncix.com/detail/corsair-raptor-k40-back-rgb-36-92768.htm .
It has most of the k70's features , but it's more simple , has more budget orianted backlighting ( but it is has a full led pannel wich gives you the option to choose whatever backlight color you want ) , and above all , its not mechanical , it is a rober-dome keyboard , but it can fill every gamers need .
But once again , I recomend the k70 for its value for money rating .
Here's a video showing the reasons yoy should buy a mechanical keyboard :
https://www.youtube.com/watch?v=CrAjlVs_xKI
I hope that this helped you .
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