Any decent cab & amp or combo is going to be able to do the job. It's down to budget & what sort of sound you want.
For starting out, I'd say pick up a small decent 2nd hand combo for around the £100-200 area to get you going (maybe something like a SWR Workingmans, Genz Benz Contour or an Ashdown MAG), & then once you've played a bit with the band, you'll be in a better position to say what you're looking for.
IF you're flash with the cash, then go try some rigs out & find out if you want a big heavy Ampeg rig, a lightweight Markbass rig or something completely different.