We are figuring a plane ticket for each of us (around $800 USD), shipping the dogs ($1500 USD) and then having three months rent (around $2000 USD if the rent was about $600-$700 USD a month). We were only planning on bringing 2 large suitcases of clothes each and then possibly shipping other things once we got established. We were also figuing in addition to rent having around $1000 USD for utilities for 3 months and then having about $2000-3000 USD to live on for 3 months. So we figured we should save around 10K (this is of course not including school tuition which I have covered through loans and the required income for the visa etc). I am not including the cost of things such as vet visits etc since I would have to do that normally and budget for that in my normal expenses. Does this sound completely unrealistic?
I've sent you a PM with some Bristol info, but I'll reply here too...If I'm honest, I think it's going to cost you a lot more than you think - just imagine everything is going to be about 1.5 times more expensive than you are used to paying in the US.
I think you'd be very lucky to find a house to rent in Bristol for less than about $2,000 a month. A 2-bedroom flat is more like $1,000 upwards per month and a one-bed flat is around $800 upwards. You'd probably only manage $600-$700 a month in a house-share.
In terms of other living costs, you'll probably be looking at about $400+ per month for utilities/council tax (we pay about $500 a month for utilities in my flat... council tax for my flat is about $2,300 a year, paid in monthly installments), $300+ for food (not including eating out), $250+ for public transport (if you are both using it every day - based on £20 a week per person).
One thing to bear in mind is that in order to be granted the visa you have to show that you have £5,400 in living costs for yourself and £400 per month for your husband... so for 9 months of study you need to show at least $14,500 in available funds (plus your tuition fees) before they will approve your visa.
Edited to add: the prices I've quoted for house/flat rents do not include utilities and they are usually unfurnished properties. Also if you are a student you don't have to pay any council tax. However, if your husband is not a student he will have to pay it, but he can get a 25% discount if he is living alone (you don't count as you are a student, so he is essentially living alone in terms of the number council tax payers in the property).