I'm reading more and more about different drivers for my hardware requiring kernel 2.7 (i have an nForce610 laptop, and my ACPI and NIC are driving me nuts. ACPI causes the system not to boot on battery, gives bad thermal parameters, etc etc, and the NIC refuses to accept DHCP even though i'm on forcedeth.c v .6 - default with bt3, tried others, bad things happened).

How hard is it to upgrade to 2.7, how much stuff will break, how do i do it (ok, the last one is a sf query but its a kernel, not a cookie, and i dont want to do a full reinstall after i think i got my setup right)