* Krapp, George Phillip and Elliott Van Kirk Dobbie. The Anglo-Saxon Poetic Records. 6 vols. New York: Columbia UP, 1931-53. This edition prints all Old English poetry known at the time; it is characterized by sound editorial judgment and legendary accuracy (only one typographical error has ever been discovered in the entire series). Explanatory notes are geared toward the specialist and the edition has no glossary. The most important poems have all been edited separately, some several times: check VIRGO for details. Electronic versions of these texts, carefully reviewed for accuracy, are available via the Labyrinth as well as (in a somewhat less convenient format) from the UVA Electronic Text Center.
Alexander, Michael, ed. Beowulf. London: Penguin, 1995. Glosses on the facing page; a few difficult passages translated in notes. Not a bad book of its kind, but see comment on edition by Jack, below.
* Dobbie, Elliott Van Kirk. This is vol. 4 of the Anglo-Saxon Poetic Records (see previous section). Probably the best edition now in print, but unfortunately it lacks a glossary.
Jack, George, ed. Beowulf: A Student Edition. Oxford: Clarendon P, 1994. Lots of marginal glosses, and maybe half the poem translated in notes. The difficulty with this edition is that one hardly needs to read the text at all. You could end up understanding the poem but missing the poetry.
* Klaeber, F., ed. Beowulf and the Fight at Finnsburg. 3rd ed. with supplements. Boston: D. C. Heath, 1950. Despite a sometimes eccentric text and a cranky set of explanatory notes, this is considered the standard edition of Beowulf. The glossary is wonderfully helpful, recording the grammatical form of practically every occurrence of every word--a gold mine for students.
Wrenn, C.L., ed. Beowulf with the Finnesburg Fragment. 2nd ed. London: Harrap, 1958. Eccentric; still useful.
Wrenn, C.L., ed. Beowulf with the Finnesburg Fragment. 3rd ed. rev. W.F. Bolton. London: Harrap, 1973.
Wyatt, A.J., ed. Beowulf with the Finnsburg Fragment. Rev. ed. by R.W. Chambers. Cambridge: Cambridge UP, 1948.