My Router Scenario - Sound Feasible?

I was wondering if someone could look this over and let me know what they think.

My internets speeds have recently doubled to 50/10, and my current router, a WRT54G-TM running Tomato firmware has turned out to be the bottleneck that prohibits me from achieving maximum internet speeds.

I have been researching routers and while I love the idea of the Asus RT-N66U, I don't love the price. I am also not sure I need it.

I am currently running a small home network with the following:

Three Desktops - Wired - Static IP
Two WDTV Live Pluses - Wired - Static IP
Four Laptops - WIFI, three running Wireless G, one running Wireless B. - Static IP

I am running a Gigabit switch behind the WRT54G-TM for LAN transfers.

I got the idea of finding a cheap wired only router, and using my current router as a wireless access point.

Does this sound a feasible plan with this wired router??
http://routerboard.com/RB750GL

Assuming this setup works, I should be fine until I decide to buy a wireless "N" laptop, which I don't really need.

I have read good things about MikroTik routers. Any reason to avoid or choose another wired router? The price is nice...

Any thoughts??

Thanks!