[LAU] Laptops for firewire based pro-audio on linux

Looking for A laptop that will perform well under linux. Requirements... * Must have graphics fast enough to run Unigine (my day job). Prefer nVidia (higher quality drivers, easier to move systems between my workstations and laptop)... * Must be able to do low latency audio via firewire (I have a Presonus firebox, a Presonus fp8 and a TI based firewire express card) * Preferably has eSata My discoveries thus far... There are specialist audio dealers that have custom built laptops for 2k to 2.5k even some in Australia. Apple Mac Book pro seems to be the front runner in terms of off the shelf performance but - Need to check out the firewire chipset before purchase and it doesn't look like eSata is available Dell would otherwise be interesting but tends to use the Ricoh chipset for firewire which is concidered to have poor performance - is there anybody here using one of these? Lenovo -- lots of models that at least have an express card slot... Which models have people got that work ok with a firewire express card? System76 some interesting possibilities talked to one of there guys, said they may take on my suggestion of providing a laptop with descent firewire. everybody else Either no firewire or problematic firewire chipsets, No express card slot. No real market differenciation. Other suggestions?