Amstos,
The Dell workstation laptops are expensive, but I actually find their notebooks otherwise to be reasonably priced. I don't know much about Hypersonic but their Aviator CX7 Duo Core with an Nvidia Quadro FX Go 1400 should be fine for running Maya. The other desktop replacements notebooks that they offer have no equivalent from Dell in a workstation portable. =-( I have an intel Core Duo workstation notebook, an Intel Dual Core Pentium D desktop, and an AMD Dual Core workstation. The AMD Dual Core chips, IMHO, are the fastest of the bunch. They, so far, are faster than the Intel Dual Core machines from my experience. The Intel Core Duo notebooks are pretty fast as well.. but they are no subsitute for a Dual Core desktop|workstation. The Hypersonic Aviator FX7 or CX7 Duo with a Quadro FX Go 1400 should run Maya fine.
Cheers