[hobobunny]

+1 to KWA from me. I own a system 7 USP tactical, and it's fun, accurate, and well built. It's kinda chunky though, so if you do buy a USP/MK23, pick your holsters well. I can't say anything about KJW though. :X

 

[hobobunny]

I absolutely love the TM px4.
I am also a left handed shooter though so a gun which I can convert to a right side mag release along with a safety on both sides is great in my book. Also, has adjustable back straps which allows you to change ergonomics.
http://shop.ehobbyasia.com/eac-marui-px4-storm-cnc-custom-titanium-green.html
^ there is another version which is 100 USD as well.

I've heard great things about the PX4. There's also lots of information on arnies about the TM and the other clone one. You'll have to register to see them though. It's worth it.

Clone PX4
http://www.arniesairsoft.co.uk/forums/index.php?/topic/197959-first-look-at-the-hk-3px4-gbb/

TM PX4
http://www.arniesairsoft.co.uk/forums/index.php?/topic/192539-initial-impressions-of-the-tm-px4-gbb-pistol/