Salmosa. Ultra-lightweight, very responsive at 500 Hz, no drivers needed (only a mousefix) If you like the shape, it's damn near-perfect.
MX 300 would be just as good. Sadly, I cannot find unused ones anywhere.
I also love the WMO BTW.
Krait is also a good choice (preferably on 400 cpi, but you need drivers for that) and it's quite rare nowadays; definitely a nice feeling to actually own one. Besides, it looks cool.
yeah its weird i also thought that krait shouldve been discontinued already but there r still BNIBs here and they always restock them.both krait red and orange =)