I did. Ordered a brand new MB Pro, 2.6GHz, 15in, 200GB 7200RPM and Logic Pro. Got another 2x2GB of RAM online which I'll put to good use.
Truth be told, "Heatmiser" makes the comment that in 6 months "old" will be irrelevant is completely on point. If my new MBP, which ships between today and the day after tomorrow, ends up being a Penryn one then great. If not, great.
I know what the current machines can do and 5-10% speed increase makes no noticeable difference in my life. Battery life can be circumvented also on long international flights by getting a second battery.
The one thing that makes this MBP so much more desirable over the "new" one is that it is tried and tested. It works. I don't have to worry about sending it back to get fixed because something isn't working properly.