So far (remember, I can only vouch for the first year!) I have yet to buy any books myself, with everything I've used coming from the library or e-books/e-journals.
The workload will be dependent on which module choices you select. This year, the modules I chose resulted in this:
Semester 1:
Archaeology: Principles and TechniquesEssay (1500 words) worth 20%
3-Minute Seminar Performance worth 10%
2 hour exam worth 70%
Apocalypse Then: 14th Century (compulsory)
Essay 1 (2000 words) worth 10%
Essay 2 (2000 words) worth 30%
Seminar Presentation worth 10%
2 hour exam worth 60%
(and yes, for some reason this module was out of 110%, we're not Mathematicians for a reason, apparently)
Intro to British Prehistory
Essay Plan worth 20%
Essay (2000 words) worth 30%
2 hour exam worth 50%
Semester 2:
Intro to Historic Archaeology
Essay 1 (2000 words) worth 25%
Essay 2 (2000 words) worth 25%
2 hour exam worth 50%
Birth of Modern Europe (compulsory)Research Bibliography worth 10%
Essay Plan worth 15%
Essay (2000 words) worth 25%
2 hour exam worth 50%
Intro to History and Heritage
Essay Plan worth 20%
Essay (2000 words) worth 30%
2 hour exam worth 50%
Obviously, I cannot truly vouch for the modules that I didn't personally choose, but from what I can tell from my friends, they were all reasonably similar in style to this. Also, whilst this may perhaps seem a bit daunting now, rest assured that the deadlines are all reasonably spaced throughout the year.
In terms of trips, from what I can tell the majority of the trips do seem to be based on the Archaeology and Heritage modules of the course. In Principles and Techniques, we visited a Viking Age site, in Intro to Historic Archaeology we visited a number of Roman / early Medieval sites and in Intro to History and Heritage we visited some museums (including some in Liverpool).
Hope this has proven to be somewhat helpful. If you have any other questions (even just general questions about the Uni / my experience / anything else you can think of), I'll try my best to answer them.