Motu 828 Mk1 And Latency Options

[zakary]

Hi everyone,
i am looking to get a new powerbook (either 12" or 15" both 1.33Ghz) with 1Gb Ram and 5400 built in HD and also thinking of getting the motu 828 mk1.

My question is what latency - how low (playing back soft synths-effects) should i be expecting to get, only while playing back, if i record something external that will probably be only one instrument at a time. I am looking to have something like 16-24 tracks (mixed audio, soft synths & effects) probably some version of logic.

I currently have the RME multiface which gives me extra low latency playing back vsti's (1.5 ms) on an old intel pentium III but i'm looking to replace this (due to firewire connectivity, mic pre-amps on the 828 which i'll need) with the motu 828mk1.

thanks in advance
zakary