I am experienced in CUDA on Fermi - c2050 and have very good benchmarks on actuarial/financial problems. I want to be early in line to up by cuda in particular regarding dynamic parallelism in cuda-5 I will buy when I can but what is the best earliest solution as a cuda-5 learning experience machine (not necessairly the best performer but that would be nice too.) ASUS? linux or windows? What hardware would be appropriate for this use.