Where can I download a regularly updated squad list of English
Premiere League teams? (Preferably in an unformatted text document,
but open to any other options)

Hi joannelee-ga

There is a complete list of English Premiership squads here:
http://www.footballsquads.co.uk/eng/2005-2006/faprem.htm
The website seems to be very regularly updated, but also includes
extra information which you may not require.

The BBC also provides complete and regularly updated squad lists. Here
is the Arsenal squad:
http://news.bbc.co.uk/sport1/hi/football/teams/a/arsenal/squad_profiles/default.stm
To see other teams, use the following link, select the desired team
name, and then "squad profiles":
http://news.bbc.co.uk/sport1/hi/football/eng_prem/default.stm
e.g. 
Aston Villa:
http://news.bbc.co.uk/sport1/hi/football/teams/a/aston_villa/squad_profiles/default.stm
Birmingham City:
http://news.bbc.co.uk/sport1/hi/football/teams/b/birmingham_city/squad_profiles/default.stm
etc.

I can find no source to download lists in unformatted text (The
Association of Football Statisticians offers downloads, but only
outdated lists of last season's squads, at www.the-afs.co.uk), so the
best way to obtain an unformatted text document will be to copy the
BBC squad lists to Wordpad or similar.

I hope the information you find is of use, and thanks for using Google Answers!

paultoon-ga