I believe that both SPIN and IRIS will permit you to "try them on for size"
 prior to purchasing!
This issue is important...  pay attention to:

 - user-ease
 - date (timeliness) of records
 - ability to compile, print, send lists and reports to your faculty
 - ability to search on keywords that are "meaningful" to YOUR faculty - and
come up with "hits"
 - ability to compile "deadline" reports for distribution (perhaps a monthly
hitlist of deadline dates for funding agencies sent to your departments)

As an additional note, for FREE federal agency information:
FEDIX  is the "one-stop-shop" for a number of federal agencies including:

DOE
HUD
NIAID
FAA
NASA
AFOSR
AID
ONR
USDA
DARIC.......

On-line, you will find the following:

FEDIX:
research programs
education programs
program contacts
fee equipment
procurement notices
educational scholarships and fellowships
notices and policy changes
"alert" information
employment information

ACCESS:

modem: dial 1(800) 783-3349
modem setup: 8 databits, no parity, 1 stopbit

WWW: set URL to http://web.fie.com/

Internet address:  fedix.fie.com

AGAIN _____  FEDIX IS FREE!

Lisa F. Richman
Director
Research Administration Services
RAMS, Inc.
*******Admittedly, the sister organization to the company that manages the
Federal "FEDIX" project******