With great difficulty, I figured out how to get google search to NOT do instant searching and NOT do the auto-complete thing, without having to define a cookie.

Set this page to your homepage and do searches the old fashoned way
http://www.google.com/webhp?complete=0&hl=en&instant=0

I have been using dd-wrt/tomato for years and I agree with some of the other posters, that development is nearly at a standstill.

IMHO, you should switch to a different platform - MikroTik!

The software is *way* more powerful than dd-wrt, has been more stable and performed exceptionally for me. I must admit, there is a bit of a learning curve but there is a lot of guides out there now and they have added a windows-based GUI, as well as significantly improved their web interface, so most basic stuff is point and click now. You can do some really powerful stuff that you would have to shell out big bucks for a cisco or the like.

They have just released a new model that supports 802.11n, using a internal diversified/MIMO antenna that transmit up to 1 Watt! (Most AP's use a 10th of that)
All for only $59! They make the hardware and the software, so you know all of the drivers are going to work.
http://routerboard.com/RB751U-2HnD

You can do stuff like make a separate SSID for guests (without a password), put it on a separate subnet to isolate it from your home network, setup strict firewall restrictions based on bandwith/port/packet shaping rules so they can't run bit-torrent and suck up all your bandwith,etc.

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You could also buy a 802.11n router, turn off the router mode (disable DHCP) and just use it as an access point. Boom - you get all of the features of dd-wrt (by still using the old model for routing) but use the new one for wireless access. I've also done that for a number of years and it works great.