Is there someone on this forum who could suggest the best way that we would be able to connect our Laptop to Broadband while we are "living on the road?" We are in our 60's and will need things explained in plain english, if that is possible

We have been on the Telecom website, but have come away from that totally confused.
Do we buy a plug in card, if so what type or are there better ways to do it?
Are some devices more reliable than others?
What system would give us the best coverage at a fast speed, throughout the country?
We will want to clear our emails and spend probably up to 30 minutes per day on the internet. Would we be able to get mobile broadband for around $75 per month on a 12 or 24 month plan?
We have a new HP Pavilion Laptop with wifi etc.
Hope someone can help as we are totally confused at the moment.
Hendos
