Commandline vimperator-like browser?

You can continue to use lynx for this. To change the key bindings, open up lynx, hit 'o' for options, and change the option VI keys[sic](under the third section) to ON.

[kevin@home-box ~]$ lynx --version
Lynx Version 2.8.5rel.1 (04 Feb 2004)
libwww-FM 2.14, SSL-MM 1.4.1, OpenSSL 0.9.8e-fips-rhel5
Built on linux-gnu Oct 27 2008 15:54:32
[copyright info snipped]
[kevin@home-box ~]$

Alternatively, you can start lynx with vikeys argument:

lynx -vikeys

To start lynx with vi key binding turned on.

I don't know lynx, but I use elinks which I believe is a side-branch from the same original tree. It's very featureful and can be configured to work much like vimperator. The command-line browser that seemed to have the most vim-like bindings of those I encountered is w3m. It can do some things elinks can't (like display graphics in-page, with elinks you need to press a key to show them in an external viewer). But after trying w3m for a short while I went back to elinks---it was better-featured in respects that I cared about day-to-day. I don't want to sell either of them to you, just present some options.