  We analyze three-band HST/ACS imaging data of the giant elliptical galaxy
ESO325-G004. This is the nearest known strongly lensing galaxy, and it resides
in the center of the poor cluster Abell S0740 at redshift z=0.034. Based on
magnitude, color, and size selection criteria, we identify a sample of 15
ultra-compact dwarf (UCD) galaxy candidates within the ACS field. This is
comparable to the numbers of UCDs found within similar regions in more nearby
clusters (Virgo, Fornax, Hydra). We estimate circular half-light radii R_e,c
from 2-D Sersic and King model fits and apply an upper cutoff of 100pc for our
UCD selection. The selected galaxies have typical Sersic indices $n\approx1.5$,
while larger sources with R_e,c > 100pc are more nearly exponential, perhaps
indicating that the latter are dominated by background disk galaxies. Many of
the UCD candidates are surrounded by a faint "fuzz" of halo light, which may be
the remnants of stripped material, and there is some evidence for intrinsic
flattening of the UCDs themselves. An apparent separation in size between the
most compact UCDs with R_e,c < 17pc and larger ones with R_e,c > 40pc may hint
at different formation mechanisms. We do not find any M32 analogues in this
field. The colors of the UCD candidates span the range from blue to red
globular clusters, although the brightest ones are predominantly red. The UCD
candidates follow the flattened, elliptical distribution of the globular
clusters, which in turn follow the galaxy halo light, suggesting a common
evolution for these three components. Follow-up spectroscopy can determine
which candidates are truly members of Abell S0740 and how similar they are in
distribution to the globulars.
