Wireless Packages

Have been with plusnet for some time now at the £21.99 pm landline BB
package. Think their wireless deal is abit of a ripoff when they want
another £28.99 pm for a limit of 500 minutes, thats 8 hour pm. Not
sure if that also applies to existing customers and I've no intention
of trying their WaitForEver phone line to ask.

Sky BB has not reached my area yet, in Sussex there is nowhere but
Brighton that has non-BT cabling, I do not need to download much from
wireless, just several hours pw surfing from hotels. Bearing all that
in mind can anyone make a suggestion as to whether:
1) Is there a better deal than the figures above for Plusnet for BB +
Wireless?
2) Is it a good idea to go with one ISP for landline BB and another for
wireless?

I need to retain the landline BB at home, the wireless is only for
laptop access when away.

feeling remote