Just looking for a server that is used a lot with fun maps, but not too long a list.

Gooberphobia is a good server. But if you want the map list, you have to contact the host directly through MSN.

Or you could look in the server list here at Halo Maps and see what maps they have played:

Halo CE Servers
http://hce.halomaps.org/index.cfm?pg=66

ALLIEDENEMIES.COMGOOBERPHOBIA
http://hce.halomaps.org/server/?IP=203.14.173.226&Port=2301&returnURL=../index.cfm?pg=66

Map Last Played
Domain Final May-19-2010
h3the_pit May-19-2010
corrupted May-19-2010
cmt_Snow_Grove May-19-2010
Covenant May-19-2010
hogracing_night May-19-2010
Garden_CE May-19-2010
Crimson_Woods May-19-2010
cmt_tensity May-19-2010
CMT_Dissolusion May-19-2010
chiller May-19-2010
[H 2]_Ivory_Tower May-19-2010
Devils_Drop_Race May-18-2010
Hillbilly Mudbog May-18-2010
hogwars May-18-2010
helix_canyon May-18-2010
Mystic May-17-2010
Insomnia_map May-17-2010
church May-09-2010
olympus_mons May-07-2010
bloodgulch May-05-2010
Camtrack-Arena-FX02 May-04-2010
atephobia__V2 May-04-2010
Headlong_PB2 May-04-2010
Seclusion_Redux May-04-2010
burial_mounds_classic May-04-2010
broadsword_race May-04-2010
bc_raceway_final_bfm_mp May-04-2010
w5rtorn_cove May-03-2010
TLSstronghold May-03-2010
Hydrolysis May-03-2010
soli_deo_gloria May-03-2010
pipedream May-03-2010
observatory May-03-2010
TM_Immolate May-02-2010
Solitude May-02-2010
portent May-02-2010
Nervous_Canyon_Race May-02-2010
Yoyorast Island V2 May-02-2010
anxiety May-01-2010
haloball Apr-24-2010
bc_raceway_final_mp Apr-04-2010
vestige Apr-02-2010
snowtorn_cove Apr-01-2010
flood_territory_v2 Mar-27-2010
wm_combo Mar-27-2010
burialmounds Mar-27-2010
Camtrack-Arena-FX Mar-05-2010
z_sanctuary_h2_pb2 Mar-03-2010
Chronopolis_C3_Public_Beta0 Mar-03-2010
H2_New_Mombasa Mar-02-2010
H2_Zanzibar Mar-02-2010
No_remorse Mar-02-2010
z_coagulation_h2_pb1 Mar-02-2010
snowcast Mar-02-2010
infinity Feb-06-2010
carousel Feb-06-2010
timberland Feb-06-2010
gephyrophobia Feb-06-2010
damnation Feb-06-2010

gooberphobia's mapcycle changes every month, so if you want their full maplist you'd have to isolate all the maps from one month and get those :P

the Realworld® Server is always epic and fun it has a map list on there site.