Check Fatbrain.com and IBM's Redbooks.
They seem to have a decent selection of things.
I'm not a Java programmer, but, from the titles, these might be useful to you. I've not read them.
Enterprise Java: Where, how, when (and when Not) to Apply Java in Client/Server Business Environments By Jeffrey Savit,With Sean Wilcox,With Bhuvana Jayaraman McGraw-Hill Companies, The; 10/1997
Online Price: $44.95
Softcover; 350 pages; This item is not currently stocked by Fatbrain.
From Client/Server to Network Computing, a Migration to Java By IBM Redbooks
Fatbrain; 05/1998
Online Price: $25.00
Documentation; 146 pages; Available: Ships within 1-2 weeks.
IBM's Redbooks, the ones I've looked at, are quite well written. Many are available on-line at [link|http://www.redbooks.ibm.com|http://www.redbooks.ibm.com] This particular one isn't, but an abstract is available [link|http://publib-b.boulder.ibm.com/Redbooks.nsf/9445fa5b416f6e32852569ae006bb65f/5990510b16a153f9852565fd0067ebfc?OpenDocument|here].
Hope this helps a bit. And welcome to IWeThey. :-)
Cheers,
Scott.