Best way to split N and G bands

[s.m.t.]

I have a Time Capsule (1st gen) and currently running in 2.4 N (B/G compat mode). I want to split the G devices out so they don't slow down the N devices. Would it be better to replace the Time Capsule with a new dual band version, or just buy an Airport Express or Extreme. I would like to have both show up as one SSID, but at the very least I want both to operate as a single VLAN network...

What's the better way to go?

 

[Acorn]

I have a linksys duel band and it works great. The 5 ghz frequency and the 2.4 frequency are separate connections and there is a third called a guest network that you can enable.

you can restrict wireless g or n or have both on the same frequency.

my whole house including the wireless printer is on the 2.4 ghz frequency which is both n and g. the 5 ghz frequency is n only and im the only one on it hehe.

I dont know how to make it 1 ssid though. the networks show up as 2 different names so you know what your connecting too.

 

[Gav2k]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Current gen extreme or tc will do what u want with ease

 

[Bear]

For both to show as one SSID, your best approach is to get a new dual-band base like the new AirportExtreme Base.