Just plug it in and start using one of the many video capture packages like camorama, webcam, camstream, motion, gqcam, etc and start playing around!
FWIW here below the fold are my loaded kernel modules:
Module                  Size  Used by
spca5xx               653808  0 
videodev               10144  1 spca5xx
binfmt_misc            13064  1 
rfcomm                 43604  0 
l2cap                  28192  5 rfcomm
af_packet              24520  4 
ppdev                   9668  0 
fglrx                 391756  8 
ipv6                  286912  44 
speedstep_centrino      8752  1 
cpufreq_powersave       1920  0 
cpufreq_stats           6688  0 
cpufreq_userspace       6496  1 
cpufreq_ondemand        7752  0 
cpufreq_conservative     9000  0 
freq_table              4928  2 speedstep_centrino,cpufreq_stats
tc1100_wmi              6884  0 
video                  16324  0 
acpi_sbs               20172  0 
battery                 9988  1 acpi_sbs
i2c_acpi_ec             5120  1 acpi_sbs
i2c_core               22848  1 i2c_acpi_ec
container               4608  0 
button                  6704  0 
pcc_acpi               12416  0 
sony_acpi               5580  0 
ac                      5220  1 acpi_sbs
dev_acpi               11236  0 
hotkey                 11492  0 
ext3                  148104  3 
jbd                    65876  1 ext3
md_mod                 76052  0 
dm_mod                 63256  1 
lp                     12356  0 
ide_cd                 35780  0 
cdrom                  41408  1 ide_cd
sd_mod                 20448  0 
scsi_mod              145960  1 sd_mod
snd_intel8x0           35740  1 
snd_ac97_codec         99808  1 snd_intel8x0
snd_ac97_bus            2400  1 snd_ac97_codec
snd_pcm_oss            56448  0 
snd_mixer_oss          20544  1 snd_pcm_oss
hci_usb                18004  2 
pcmcia                 41948  0 
tsdev                   8032  0 
joydev                 10432  0 
bluetooth              54084  7 rfcomm,l2cap,hci_usb
snd_pcm                96676  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
pcspkr                  2244  0 
tpm_infineon            8724  0 
snd_timer              26884  1 snd_pcm
tpm                    11232  1 tpm_infineon
parport_pc             37988  1 
parport                39400  3 ppdev,lp,parport_pc
floppy                 64676  0 
yenta_socket           30124  3 
rsrc_nonstatic         14624  1 yenta_socket
ath_pci                81820  0 
ath_rate_sample        17224  1 ath_pci
pcmcia_core            45272  3 pcmcia,yenta_socket,rsrc_nonstatic
wlan                  146684  3 ath_pci,ath_rate_sample
ath_hal               148848  3 ath_pci,ath_rate_sample
tg3                   113284  0 
snd                    60004  8 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              10784  1 snd
snd_page_alloc         11304  2 snd_intel8x0,snd_pcm
psmouse                40036  0 
serio_raw               7748  0 
intel_agp              24700  1 
agpgart                36784  2 fglrx,intel_agp
shpchp                 49504  0 
pci_hotplug            30788  1 shpchp
evdev                  10176  1 
reiserfs              284016  3 
ide_generic             1504  0 
ehci_hcd               33800  0 
uhci_hcd               35408  0 
usbcore               137700  5 spca5xx,hci_usb,ehci_hcd,uhci_hcd
ide_disk               19200  9 
piix                   11652  1 
generic                 5124  0 
thermal                13768  0 
processor              26344  2 speedstep_centrino,thermal
fan                     4836  0 
fbcon                  43904  0 
tileblit                2784  1 fbcon
font                    8320  1 fbcon
bitblit                 6464  1 fbcon
softcursor              2304  1 bitblit
capability              4968  0 
commoncap               7328  1 capability