budget chasing
I chase on a TIGHT budget each year, and I use a Weathertap account for radar (their RadarLab feature shows storm tracks and attributes). It takes just under 1 minute to load a RadarLab image via cell connection. Cheaper still (as in free) is Wx Underground Nexrad, which also has a storm track/attributes feature (I don't use it, but I know that it does have these features). Delays on the radar imagery don't seem too long either.
For analysis on the road, I go to the SPC's Forecast Tools (Mesoanalysis Graphics); there you can get various RUC's-based convective parameters, and various indices, etc.
It is not a perfect system, but when connections on the road are slow and/or intermittent, it provides enough data to help. The low cost enables me to splurge and pack some Little Debbies in my cooler along with living off of PB & J for 2 weeks!
-DC