Honestly, I don't think they'll raise your limit at all. You have a lot of open cards and $1000 is right in line with the limits you currently have. Use it well for 6 months and then ask for a CLI.
TU: 732 (11/27/12) EQ: 705 (11/27/12) EX: 723 (1/7/13)
Cap1 Newcomers, $750 (4/2012); AMEX Green, NPSL (10/2012); Discover IT, $3500 (10/2012); Chase Amazon Rewards, $1100 (10/2012); AMEX Hilton HHonors, $4000 (11/2012); AMEX Blue Cash Everyday, $4000 (01/2013); Chase Southwest Airlines Rapid Rewards Plus, $6500 (03/2013)
Zero credit history to over 19k in credit in under a year...all thanks to this community!
