A really nice way to do speed ramps in Premiere Pro 2.0, assuming you have the Production Studio:
– select the clip on the timeline that you want to do a speed ramp/keyframed speed change
– copy
– alt+tab to AE
– paste
– apply Timewarp effect (new in AE 7.0)
– experiment setting speed keyframes, preview, iterate until happy then RAM preview
– drag comp to taskbar over Premiere Pro until it comes forward
– drop the comp into the Project window
– use that comp (Dynamic Linked into PPro) like any other clip, e.g., replace the original one
– voila!