Accessories for Sony HDR-CX520V 64GB Hard Drive HD Camcorder

[GEOrifle]

Guys i bought Sony HDR-CX520V 64GB Hard Drive HD Camcorder and now wanted to add
some accessories like:Filters or lens, battery...(I'm not PRO...YET, just started).
But i'm not sure wich is good one and compatible and which one i really need.
I find some of them at AMAZON.

Zeikos ZE-WA37S 37mm 0.45X Wide Angle Lens-- $10
http://www.amazon.com/Zeikos-ZE-WA37...ref=pd_sim_p_2

Zeikos ZE-FLK37 37mm Multi-Coated 3 Piece Filter Kit (UV-CPL-FLD)--$12
http://www.amazon.com/Zeikos-ZE-FLK3...6137588&sr=1-2

Sony NPFH70 H Series Actiforce Hybrid InfoLithium Battery for most Sony Camcorders-$33
http://www.amazon.com/Sony-Actiforce...p_ob_p_title_3

The Battery i don't need more but i'm not sure about filters and lens(Right and good ones).

What else do you recommend more?
Thanks.

 

[GEOrifle]

Anyone....